Method and apparatus for determining quasi-co-location reference signal

ABSTRACT

Provided are a method and apparatus for determining a quasi-co-location reference signal. The method includes: determining a first transmission configuration indication list corresponding to a first control channel element, determining, in the first transmission configuration indication list, index information of transmission configuration indication activated for the first control channel element, and determining a quasi-co-location reference signal activated for the first control channel element according to the index information and the first transmission configuration indication list.

This application claims priority to Chinese Patent Application No.201811341635.2 filed with the CNIPA Nov. 12, 2018, the disclosure ofwhich is incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the field of communications, forexample, a method and apparatus for determining a quasi-co-locationreference signal.

BACKGROUND

The concept of control channel resource set (CORESET) is introduced intothe New Radio (NR), and one CORESET is configured with information suchas a frequency domain resource, quasi-co-location reference signalinformation, and a resource mapping mode of the control channel. When aterminal initially accesses a base station, the base station configuresone CORESET which is called CORESET0, for the terminal through a systemmessage, and the terminal performs at least one of the operations inCORESET0: sensing physical random access channel (PRACH) responseinformation or listening to a common message.

The quasi-co-location reference signal of CORESET0 may be a single sideband (SSB) selected by the terminal based on the PRACH. Since the SSBselected by the terminal is not suitable after the terminal enters aradio resource control (RRC) link and no quasi-co-location referencesignal would be configured for CORESET0 in the related NR signalingarchitecture, in order to increase the flexibility of CORESET0 and evenenable a proprietary control channel to be transmitted on the resourcesof CORESET0, the quasi-co-location reference signal needs to beconfigured for CORESET0.

SUMMARY

Embodiments of the present disclosure provide a method and apparatus fordetermining a quasi-co-location reference signal, which can configure aquasi-co-location reference signal for a control channel element. Forexample, the method and apparatus can configure a quasi-co-locationreference signal for CORESET0, thereby increasing flexibility ofCORESET0 and even enabling a proprietary control channel to betransmitted on the resources of CORESET0.

An embodiment of the present disclosure provides a method fordetermining a quasi-co-location reference signal. The method includesthe steps described below.

A first transmission configuration indication list corresponding to afirst control channel element is determined.

Index information of transmission configuration indication activated forthe first control channel element in the first transmissionconfiguration indication list is determined.

A quasi-co-location reference signal activated for the first controlchannel element is determined according to the index information and thefirst transmission configuration indication list.

An embodiment of the present disclosure provides an apparatus fordetermining a quasi-co-location reference signal. The apparatus includesa transmission configuration indication list determination module, atransmission configuration indication index information determinationmodule, and a first quasi-co-location reference signal determinationmodule.

A transmission configuration indication list determination module isconfigured to determine a first transmission configuration indicationlist corresponding to a first control channel element.

The transmission configuration indication index informationdetermination module is configured to determine index information oftransmission configuration indication activated for the first controlchannel element in the first transmission configuration indication list.

The first quasi-co-location reference signal determination module isconfigured to determine a quasi-co-location reference signal activatedfor the first control channel element according to the index informationand the first transmission configuration indication list.

An embodiment of the present disclosure provides a device fordetermining a quasi-co-location reference signal. The device includes aprocessor and a computer-readable storage medium, where thecomputer-readable storage medium is configured to store instructionswhich, when executed by the processor, implement any of the methods fordetermining a quasi-co-location reference signal described above.

An embodiment of the present disclosure provides a computer-readablestorage medium, which is configured to store a computer program which,when executed by a processor, implements steps of any of the methods fordetermining a quasi-co-location reference signal described above.

An embodiment of the present disclosure provides a method fordetermining a quasi-co-location reference signal. The method includesthe step described below.

In response to satisfying a third predetermined condition, aquasi-co-location reference signal of a reference parameter isdetermined according to a quasi-co-location reference signal of acontrol channel element satisfying a fifth predetermined characteristicin a second time unit. The second time unit is latest to at least one ofa channel or a signal corresponding to the reference signal and is in aset of first time units, and each of the first time units includes acontrol channel element satisfying a fourth predeterminedcharacteristic.

An embodiment of the present disclosure provides an apparatus fordetermining a quasi-co-location reference signal. The apparatus includesa second quasi-co-location reference signal determination module.

The second quasi-co-location reference signal determination module isconfigured to determine a quasi-co-location reference signal of thereference parameter according to a quasi-co-location reference signal ofa control channel element satisfying a fifth predeterminedcharacteristic in a second time unit. The second time unit is latest toat least one of a channel or a signal corresponding to a referencesignal and is in a set of first time units, and each of the first timeunits includes a control channel element satisfying a fourthpredetermined characteristic.

An embodiment of the present disclosure provides a device fordetermining a quasi-co-location reference signal. The device includes aprocessor and a computer-readable storage medium, where thecomputer-readable storage medium is configured to store instructionswhich, when executed by the processor, implement any of the methods fordetermining a quasi-co-location reference signal described above.

An embodiment of the present disclosure provides a computer-readablestorage medium, which is configured to store a computer program which,when executed by a processor, implements steps of any of the method fordetermining a quasi-co-location reference signal described above.

An embodiment of the present disclosure provides a method fortransmitting a reference signal. The method includes the steps describedbelow.

Reference signal information is determined according to at least one ofsignaling information or a first predetermined rule, where a port of thereference signal information satisfies a second predetermined rule.

At least one of a reference signal, a channel corresponding to thereference signal, or a signal corresponding to the reference signal istransmitted according to the reference signal information.

An embodiment of the present disclosure provides an apparatus fortransmitting a reference signal. The apparatus includes a determinationmodule and a second transmission module.

The determination module is configured to determine reference signalinformation according to at least one of signaling information or afirst predetermined rule, where a port of the reference signalinformation satisfies a second predetermined rule.

The second transmission module is configured to transmit, according tothe reference signal information, at least one of the reference signal,a channel corresponding to the reference signal, or a signalcorresponding to the reference signal.

An embodiment of the present disclosure provides a device fortransmitting a reference signal. The device includes a processor and acomputer-readable storage medium, where the computer-readable storagemedium is configured to store instructions which, when executed by theprocessor, implement any of the methods for transmitting a referencesignal described above.

An embodiment of the present disclosure provides a computer-readablestorage medium, which is configured to store a computer program which,when executed by a processor, implements steps of any of the method fortransmitting a reference signal described above.

In the embodiments of the present disclosure, a first transmissionconfiguration indication list corresponding to a first control channelelement is determined, index information of transmission configurationindication activated for the first control channel element in the firsttransmission configuration indication list is determined, and aquasi-co-location reference signal activated for the first controlchannel element is determined according to the index information and thefirst transmission configuration indication list. In the embodiments ofthe present disclosure, a quasi-co-location reference signal can beconfigured for a control channel element through the first transmissionconfiguration indication list and the index information in the firsttransmission configuration indication list. For example, aquasi-co-location reference signal can be configured for CORESET0,thereby increasing flexibility of CORESET0 and even enabling aproprietary control channel to be transmitted on the resources ofCORESET0.

BRIEF DESCRIPTION OF DRAWINGS

The drawings are used to provide a further understanding of thetechnical solutions of the embodiments of the present disclosure,constitute a part of the specification, and explain the technicalsolutions of the embodiments of the present disclosure in conjunctionwith the embodiments of the present disclosure.

FIG. 1 is a schematic diagram of a frequency domain resource in which atleast one of a channel or a signal is located according to an embodimentof the present disclosure;

FIG. 2 is a flowchart of a method for determining a quasi-co-locationreference signal according to an embodiment of the present disclosure;

FIG. 3 is a structural diagram of an apparatus for determining aquasi-co-location reference signal according to another embodiment ofthe present disclosure;

FIG. 4 is a flowchart of a method for determining a quasi-co-locationreference signal according to another embodiment of the presentdisclosure;

FIG. 5 is a schematic diagram of calculation of a time intervalaccording to an embodiment of the present disclosure; and

FIG. 6 is a structural diagram of an apparatus for determining aquasi-co-location reference signal according to an embodiment of thepresent disclosure.

DETAILED DESCRIPTION

Embodiments of the present disclosure will be described below in detailwith reference to the drawings. It is to be noted that if not incollision, the embodiments described herein and the features thereof maybe combined with each other.

The steps illustrated in the flowcharts among the drawings may beperformed by, for example, a computer system capable of executing a setof computer-executable instructions. Moreover, although logicalsequences are illustrated in the flowcharts, the illustrated ordescribed steps may be performed in sequences different from thosedescribed herein in some cases.

In the embodiments described below, that two reference signals satisfy aquasi-co-location relationship indicates that the two reference signalssatisfy a quasi-co-location relationship with respect to at least onequasi-co-location parameter, that is, the quasi-co-location parameter ofone reference signal can be obtained according to the quasi-co-locationparameter of the other reference signal. The quasi-co-location parameterincludes at least one of a Doppler shift, a Doppler spread, an averagedelay, a delay spread, a Spatial Rx parameter, or an average gain.

In the embodiments described below, at least one of the characteristicsdescribed below is included.

One quasi-co-location parameter associates only one reference signal inone quasi-co-location reference signal set.

The difference set of the quasi-co-location parameter sets associatedwith different quasi-co-location reference signal sets is null.

One quasi-co-location reference signal set can only include at most tworeference signals.

In the embodiments described below, the predetermined quasi-co-locationparameter set belongs to a union set of the quasi-co-location parameterset associated with each reference signal in one quasi-co-locationreference signal set.

In the embodiments described below, that the quasi-co-location referencesignal of at least one of a channel or a signal means that thequasi-co-location reference signal and at least one of the channel orthe signal satisfy a quasi-co-location relationship with respect to atype of quasi-co-location parameters. That the quasi-co-locationreference signal of a channel element means that the channel element andthe quasi-co-location reference signal satisfy a quasi-co-locationrelationship with respect to a type of quasi-co-location parameters. Aquasi-co-location reference signal and at least one of a demodulationreference signal (DMRS) or a DMRS port satisfy a quasi-co-locationrelationship with respect to a type of quasi-co-location parameters.

In the embodiments described below, one piece of transmissionconfiguration indication corresponds to one or more quasi-co-locationreference signal sets. The transmission configuration indication mayalso be referred to as quasi-co-location reference signal indicationinformation or other names.

In the embodiments described below, CORESET0 is a common control channelresource configured in a system message. A portion of the information ofCORESET0 is configured in the system message and some information ofCORESET0 may also be notified via user equipment (UE)-specificsignaling. A first node (for example, a terminal) may acquire thecontrol information transmitted by a second node (for example, a basestation) through a common control channel transmitted in CORESET0 whenthe first node is in the idle state or before the radio resource control(RRC) link is established. Of course, the first node and the second nodemay interception the proprietary control channel in the COERSET0 afterthe RRC link is established.

In the embodiments described below, the control channel element is oneof a control channel resource set (CORESET), a search space set, asearch space, a candidate control channel, an occasion of the searchspace set, or an occasion of the search space.

In the embodiments described below, one frequency domain bandwidthcorresponds to at least one of one component carrier (CC), one bandwidthpart (BWP, that is, frequency domain bandwidth), or one continuousfrequency domain bandwidth in the BWP.

That one frequency domain bandwidth belongs to another frequency domainbandwidth comprises that frequency domain resources of one frequencydomain bandwidth belong to frequency domain resources of anotherfrequency domain bandwidth. One frequency domain resource is a physicalresource block (PRB) or an absolute frequency domain resource, where theabsolute frequency domain resource includes a segment of frequencydomain resources obtained based on a predetermined subcarrier spacingand a predetermined carrier reference point.

In the embodiments described below, that two pieces of information areassociated with each other includes any of the following situations.

The value of one piece of information is obtained according to the valueof the other piece of information.

The value range of one piece of information is obtained according to thevalue or the value range of the other piece of information.

Some combinations of values of the two pieces of information cannotoccur simultaneously.

A transmission parameter of the element corresponding to one piece ofinformation is obtained according to the other piece of information.

In the embodiments described below, the frequency domain resource inwhich at least one of the channel or the signal is located includes atleast one of a CC in which at least one of the channel or the signal islocated, a BWP in which at least one of the channel or the signal islocated, a set of frequency domain resource blocks occupied by at leastone of the channel or the signal, or the frequency domain spancorresponding to the set of frequency domain resource blocks occupied byat least one of the channel or the signal.

For example, FIG. 1 shows a CC in which a physical downlink sharedchannel (PDSCH)/CORESET is located and the BWP in which thePDSCH/CORESET is located, and the dashed area in FIG. 1 shows the set offrequency domain resource blocks occupied by at least one of the channelor the signal. Further, as shown in FIG. 1, the frequency domain span isa set consisting of PRBs between the highest PRB index and the lowestPRB index in the set of frequency domain resource blocks occupied by atleast one of the channel or the signal, where one frequency domainresource block is a PRB.

In the embodiments described below, the control channel for schedulingat least one of the channel or the signal corresponding to the referencesignal does not include indication information of transmissionconfiguration indication, which includes two cases described below.

One case is that a configuration of the control resource set indicatesthat a control channel of the control resource set does not includetransmission configuration indication (TCI) information.

The other case is that the control information included in the controlchannel belongs to a predetermined format.

For example, that the physical downlink control channel (PDCCH) does notinclude the TCI information includes two cases described below.

One case is that the parameter tci-PresentInDCI is not configured in theCORESET in which the downlink control information (DCI) format1_1 islocated, that is, the DCI format1_1 of the CORESET does not include theTCI information.

The other case is that the PDCCH includes the DCI format1_0 and the DCIformat1_0 does not include the TCI information at any time.

In the above cases, the PDCCH is a PDCCH for scheduling a PDSCH/PDCCH.

With reference to FIG. 2, an embodiment of the present disclosureprovides a method for determining a quasi-co-location reference signal.The method includes steps 200, 201, and 202 described below.

In step 200, a first transmission configuration indication list, whichcorresponds to a first control channel element, is determined.

In step 201, index information of transmission configuration indication,which is activated for the first control channel element in the firsttransmission configuration indication list, is determined.

In step 202, a quasi-co-location reference signal, which is activatedfor the first control channel element, is determined according to theindex information and the first transmission configuration indicationlist.

In the embodiment of the present disclosure, a quasi-co-locationreference signal can be configured for a control channel element throughthe first transmission configuration indication list and the indexinformation in the first transmission configuration indication list. Forexample, a quasi-co-location reference signal can be configured forCORESET0, thereby increasing flexibility of CORESET0 and even enabling aproprietary control channel to be transmitted on the resources ofCORESET0.

In another embodiment of the present disclosure, one piece oftransmission configuration indication in the first transmissionconfiguration indication list corresponds to at least onequasi-co-location reference signal set, which includes at least one ofthe following conditions.

One quasi-co-location parameter associates only one reference signal inone quasi-co-location reference signal set; the difference set of thequasi-co-location parameter sets associated with differentquasi-co-location reference signal sets is null; or onequasi-co-location reference signal set can only include at most tworeference signals.

For example, the first transmission configuration indication list may bea TCI state list in which one TCI state is one piece of transmissionconfiguration indication and one TCI state corresponds to at least onequasi-co-location reference signal set.

In another embodiment of the present disclosure, the step in which afirst transmission configuration indication list corresponding to afirst control channel element is determined includes at least one of thefollowing steps.

The first transmission configuration indication list is determinedaccording to first control signaling.

The first transmission configuration indication list is determinedaccording to determination of whether the first control channel elementbelongs to a predetermined control channel element set.

The first transmission configuration indication list is determinedaccording to the number of BWPs configured other than an initial BWP.For example, when the number of BWPs configured other than the initialBWP is less than a predetermined threshold, the first transmissionconfiguration indication list belongs to a transmission configurationindication list corresponding to channel elements in the initial BWP;when the number of BWPs configured other than the initial BWP is greaterthan or equal to the predetermined threshold, the first transmissionconfiguration indication list belongs to a transmission configurationindication list corresponding to channel elements in a BWP, the BWP hasthe lowest BWP index in the set of BWPs other than the initial BWP.

The first transmission configuration indication list is determinedaccording to determination of whether a channel element corresponding toa BWP satisfying a first predetermined characteristic configures atransmission configuration indication list.

The first transmission configuration indication list is determinedaccording to determination of whether a transmission configurationindication list configured in a predetermined channel element satisfiesa third predetermined characteristic.

In another embodiment of the present disclosure, the first controlsignaling satisfies one of the following conditions.

The first control signaling carries first transmission configurationindication list information.

Alternatively, the first control signaling carries BWP indexinformation. The first transmission configuration indication listbelongs to a second transmission configuration indication listconfigured in configuration indication of a first channel element in aBWP corresponding to the BWP index information.

Alternatively, the first control signaling carries at least one of BWPindex information, channel element index information, or first controlchannel element index information. The first transmission configurationindication list belongs to a third transmission configuration indicationlist configured in configuration indication of a second channel elementcorresponding to both the BWP index information and the channel elementindex information, where the second channel element is a channel elementcorresponding to channel element index information in the BWPcorresponding to the BWP index information.

In the embodiment of the present disclosure, that the first transmissionconfiguration indication list belongs to the third transmissionconfiguration indication list includes the following case.

A quasi-co-location reference signal corresponding to the transmissionconfiguration indication belonging to the first transmissionconfiguration indication list in the third transmission configurationindication list and a synchronization signal satisfy a quasi-co-locationrelationship with respect to a type of quasi-co-location parameters.

In another embodiment of the present disclosure, the first controlchannel element or the first channel element or the second channelelement satisfies at least one of the following characteristics.

The first control channel element and a control channel element includedin the first channel element are two different control channel elements.

The first control channel element and a control channel element includedin the second channel element are two different control channelelements.

The first control channel element or the control channel elementincluded in the first channel element or the control channel elementincluded in the second channel element is a downlink control channelelement.

The first control channel element or the control channel elementincluded in the first channel element or the control channel elementincluded in the second channel element includes at least one of acontrol channel resource set, a search space set, a search space, or acandidate control channel.

The frequency domain bandwidth corresponding to the BWP indexinformation includes resources occupied by the first control channelelement.

The first channel element includes at least one of a data channelelement or a control channel element.

The frequency domain bandwidth in which the first channel element islocated is different from the frequency domain bandwidth in which thefirst control channel element is located.

The second channel element includes at least one of: a data channelelement or a control channel element.

The frequency domain bandwidth in which the second channel element islocated is different from the frequency domain bandwidth in which thefirst control channel element is located.

In another embodiment of the present disclosure, the step in which thefirst transmission configuration indication list is determined accordingto the determination of whether the first control channel elementbelongs to the predetermined control channel element set includes atleast one of the following steps.

In response to the first control channel element not belonging to thepredetermined control channel element set, the first transmissionconfiguration indication list is a transmission configuration indicationlist configured for the first control channel element in third controlsignaling, where the third control signaling carries a first controlchannel element index.

In response to the first control channel element belonging to thepredetermined control channel element set, the first transmissionconfiguration indication list belongs to a transmission configurationindication list configured for a third channel element in fourth controlsignaling, where the fourth control signaling does not carry the firstcontrol channel element index.

In the above steps, the predetermined control channel element setincludes at least one of a control channel resource set 0 or a searchspace set 0.

In another embodiment of the present disclosure, the third channelelement satisfies at least one of the following characteristics.

A BWP in which the third channel element is located satisfies the firstpredetermined characteristic at a predetermined time.

The third channel element satisfies a second predeterminedcharacteristic at the predetermined time.

A transmission configuration indication list configured in the thirdchannel element satisfies the third predetermined characteristic.

An intersection of a control channel element set included in the thirdchannel element and the predetermined control channel element set isnull.

The third channel element includes at least one of a data channelelement or a control channel element.

In another embodiment of the present disclosure, the first predeterminedcharacteristic includes at least one of the following characteristics.

The BWP is in an active state.

The BWP is the initial BWP.

The BWP is a default BWP.

The BWP and a BWP in which the first control channel element is locatedbelong to the same CC.

The BWP includes a resource occupied by the first control channelelement.

The BWP is a BWP having the lowest BWP index in a BWP set.

The BWP includes at least one predetermined type of channel elements,where the predetermined type of channel elements does not include thefirst control channel element.

In another embodiment of the present disclosure, the secondpredetermined characteristic includes at least one of the followingcharacteristics.

The third channel element is a channel element transmitted in a timeunit closest to the predetermined time.

The third channel element is a control channel element having apredetermined control channel element index in a set of a controlchannel element, other than the first control channel element, in thetime unit closest to the predetermined time.

The third channel element is a control channel element having thepredetermined control channel element index in a set of a controlchannel element, other than the first control channel element, in theBWP satisfying the first predetermined characteristic at thepredetermined time.

The third channel element is a control channel element having thepredetermined control channel element index in the set of the controlchannel element, other than the first control channel element, in thetime unit closest to the predetermined time.

The third channel element is a control channel element having thepredetermined control channel element index in the BWP satisfying thefirst predetermined characteristic at the predetermined time.

In the above characteristics, the predetermined control channel elementindex includes any one of the lowest control channel element index orthe highest control channel element index.

In another embodiment of the present disclosure, the predetermined timeincludes at least one of a transmission time of the second controlsignaling or a time unit in which the transmission time is located; astart time at which transmission configuration indication carried in thesecond control signaling is capable of being used for receiving thefirst control channel element or a time unit in which the start time islocated; the predetermined time which is associated with second controlsignaling information; or a monitoring time of the first control channelelement or a time unit in which the monitoring time is located.

In another embodiment of the present disclosure, the second controlsignaling satisfies at least one of the following characteristics.

In response to satisfying a first predetermined condition, serving cellindex information in the second control signaling and the firsttransmission configuration indication list information are jointlyencoded.

In response to satisfying the first predetermined condition, the secondcontrol signaling carries the first transmission configurationindication list information.

In response to satisfying the first predetermined condition, the servingcell index information in the second control signaling is used forindicating the first transmission configuration indication list.

In the above characteristics, the second control signaling is mediumaccess control-control element (MAC-CE) control signaling.

The first predetermined condition includes at least one of the firstcontrol channel element belongs to the predetermined control channelelement set, the number of the serving cells is less than a firstpredetermined value, or the number of serving cells configured with thepredetermined control channel element set is less than a secondpredetermined value.

The first transmission configuration indication list informationincludes at least one of the BWP index information, the first controlchannel element index information, the channel element indexinformation, or transmission configuration indication list indexinformation.

In another embodiment of the present disclosure, the third predeterminedcharacteristic includes at least one of the following characteristics.

The number of elements included in the transmission configurationindication list is greater than a third predetermined value, where thetransmission configuration indication is configured for thepredetermined channel element or for the third channel element.

The number of pieces of first-type transmission configuration indicationis greater than a fourth predetermined value, where the pieces offirst-type transmission configuration indication are included in thetransmission configuration indication list configured for thepredetermined channel element or for the third channel element, and eachquasi-co-location reference signal corresponding to the first-typetransmission configuration indication and a synchronization signalsatisfy a quasi-co-location relationship.

The number of pieces of second-type transmission configurationindication is greater than the fifth predetermined value, where thepieces of second-type transmission configuration indication are includedin the transmission configuration indication list configured for thepredetermined channel element or for the third channel element, and aquasi-co-location reference signal and a synchronization signal satisfya quasi-co-location relationship, where the quasi-co-locationcorresponds to the second-type transmission configuration indication andis associated with a type of quasi-co-location parameters.

In another embodiment of the present disclosure, the step in which thefirst transmission configuration indication list is determined accordingto the number of BWPs configured other than the initial BWP includes atleast one of the following steps.

In response to the number of the BWPs configured other than the initialBWP being less than a sixth predetermined value, the first transmissionconfiguration indication list is determined to belong to a fourthtransmission configuration indication list configured for configurationindication of a fourth channel element in the initial BWP.

In response to the number of the BWPs configured other than the initialBWP being greater than or equal to the sixth predetermined value, thefirst transmission configuration indication list is determined to belongto a fifth transmission configuration indication list configured forconfiguration indication of a fifth channel element in a BWP having alowest BWP index, other than the initial BWP, in a BWP set.

In another embodiment of the present disclosure, the step in which thefirst transmission configuration indication list is determined accordingto the determination of whether the channel element corresponding to theBWP satisfying the first predetermined characteristic configures thetransmission configuration indication list includes at least one of thefollowing steps.

In response to the channel element, which corresponds to the BWPsatisfying the first predetermined characteristic, not configuring withthe transmission configuration indication list, the first transmissionconfiguration indication list is determined to belong to a sixthtransmission configuration indication list configured for configurationindication of a sixth channel element in a BWP other than the initialBWP.

In response to the channel element, which corresponds to the BWPsatisfying the first predetermined characteristic, being configured withthe transmission configuration indication list, the first transmissionconfiguration indication list is determined to belong to a seventhtransmission configuration indication list configured for configurationindication of a seventh channel element in the initial BWP.

In another embodiment of the present disclosure, the first transmissionconfiguration indication list belongs to an X^(th) transmissionconfiguration indication list, where X is a value ranging from 2 to 7,which includes the following case.

A quasi-co-location reference signal and a synchronization signalsatisfy a quasi-co-location relationship with respect to a type ofquasi-co-location parameters, where the quasi-co-location referencesignal corresponds to transmission configuration indication belonging tothe first transmission configuration indication list in the X^(th)transmission configuration indication list.

In another embodiment of the present disclosure, the type ofquasi-co-location parameters satisfies at least one of the followingcharacteristics.

The type of quasi-co-location parameters includes at least one of aDoppler shift, a Doppler spread, an average delay, a delay spread, or anaverage gain; or the type of quasi-co-location parameters does notinclude a spatial reception filtering parameter.

In another embodiment of the present disclosure, the first controlchannel element or an i^(th) channel element satisfies at least one ofthe following characteristics, where i is a value ranging from 1 to 7.The first control channel element and a control channel element includedin the i^(th) channel element are two different control channelelements.

A control channel element, which includes in at least one of the firstcontrol channel element or the i^(th) channel element, includes at leastone of a control channel resource set, a search space set, a searchspace, a candidate control channel, or a downlink control channel.

The i^(th) channel element includes at least one of a data channelelement or a control channel element.

A frequency domain bandwidth in which the i^(th) channel element islocated is different from a frequency domain bandwidth in which thefirst control channel element is located.

A transmission configuration indication list configured in the i^(th)channel element satisfies the third predetermined characteristic.

In another embodiment of the present disclosure, the third predeterminedcharacteristic includes at least one of the following characteristics.

The number of elements is greater than the third predetermined value,where the elements are included in the transmission configurationindication list configured for the predetermined channel element or forthe third channel element.

The number of pieces of first-type transmission configuration indicationis greater than a fourth predetermined value, where the pieces offirst-type transmission configuration indication are included in thetransmission configuration indication list configured for thepredetermined channel element or for the third channel element, and eachquasi-co-location reference signal corresponding to the first-typetransmission configuration indication and a synchronization signalsatisfy a quasi-co-location relationship.

The number of pieces of second-type transmission configurationindication is greater than a fifth predetermined value, where the piecesof second-type transmission configuration indication are included in thetransmission configuration indication list configured for thepredetermined channel element or for the third channel element, and aquasi-co-location reference signal and a synchronization signal satisfya quasi-co-location relationship, where a quasi-co-location referencesignal corresponds to the second-type transmission configurationindication and is associated with a predetermined type ofquasi-co-location parameters.

In another embodiment of the present disclosure, the step in which theindex information of transmission configuration indication activated forthe first control channel element in the first transmissionconfiguration indication list is determined includes the following step.

The index information is determined according to second controlsignaling, where the second control signaling includes the indexinformation.

In another embodiment of the present disclosure, the step in which theindex information of transmission configuration indication activated forthe first control channel element in the first transmissionconfiguration indication list is determined includes at least one of thefollowing steps.

In response to satisfying a second predetermined condition, the indexinformation is determined according to the second control signaling,where the second control signaling includes the index information.

In response to not satisfying the second predetermined condition, aquasi-co-location reference signal of the first control channel elementis a quasi-co-location reference signal corresponding to at least onetransmission configuration indication index predetermined in the firsttransmission configuration indication list.

In the above steps, the second predetermined condition includes thefollowing condition.

The number of pieces of transmission configuration indication includedin the first transmission configuration indication list is greater thana seventh predetermined value.

In another embodiment of the present disclosure, the first controlsignaling or the second control signaling satisfies at least one of thefollowing characteristics.

The first control signaling and the first control channel element are inan association relationship.

The first control signaling further carries the first control channelelement information.

The second control signaling is MAC-CE control signaling.

The first control signaling and the second control signaling are thesame control signaling.

The first control signaling is RRC signaling.

In another embodiment of the present disclosure, the step in which thequasi-co-location reference signal activated for the first controlchannel element is determined according to the index information and thefirst transmission configuration indication list includes the followingsteps.

The transmission configuration indication activated for the firstcontrol channel element is determined according to the index informationand the first transmission configuration indication list, where thetransmission configuration indication activated for the first controlchannel element is transmission configuration indication correspondingto index information in the first transmission configuration indicationlist.

The quasi-co-location reference signal activated for the first controlchannel element is determined according to the transmissionconfiguration indication activated for the first control channelelement, where the quasi-co-location reference signal activated for thefirst control channel element is a quasi-co-location reference signal ina quasi-co-location reference signal set corresponding to thetransmission configuration indication activated for the first controlchannel element.

In another embodiment of the present disclosure, the quasi-co-locationreference signal activated for the first control channel elementcorresponds to at least two synchronization signal blocks, and themethod further includes the following step.

A monitoring occasion of the first control channel element is determinedaccording to the at least two synchronization signal blockscorresponding to the quasi-co-location reference signal activated forthe first control channel element.

In the above step, the first control channel element includes at leastone of a control channel resource set 0 or a search space set 0.

One synchronization signal block corresponds to one synchronizationsignal (SS) broadcast channel block/physical broadcast channel (PBCH)block. For example, a 5 ms half frame includes at most 64 SSBs. Channelsand/or signals in different SSBs do not satisfy a quasi-co-locationrelationship.

For example, when the CORESET is not the CORESET0 but, for example, theCORESET1, the RRC signaling configures a TCI state list (that is, in thefirst transmission configuration indication list, one TCI state is onepiece of transmission configuration indication and corresponds to atleast one quasi-co-location reference signal set) in the configurationindication of CORESET1. The MAC-CE signaling activates one TCI state forCORESET1 in the TCI state list, and a corresponding reference signal inthe TCI state is a quasi-co-location reference signal of a demodulationreference signal (DMRS) of a physical downlink control channel (PDCCH)transmitted in CORESET1.

As shown in Table 1 below, TCI state1 corresponds to twoquasi-co-location reference signal sets, which are quasi-co-locationreference signal set 1 (channel state information-reference signal(CSI-RS) 1, CSI-RS2) and quasi-co-location reference signal set 2(CSI-RS3, CSI-RS4). When the index information of the transmissionconfiguration indication of one physical downlink shared channel(PDSCH)/CORESET is configured as TCI1, the quasi-co-location referencesignal of the DMRS port group 1 of the PDSCH/CORESET is at least one ofCSI-RS1 or CSI-RS2. The quasi-co-location parameters, including aDoppler shift, a Doppler spread, an average delay and a delay spread, ofthe DMRS port group 1 of the PDSCH/CORESET are acquired according toCSI-RS1, and the quasi-co-location parameter, including a Spatial Rxparameter, is acquired according to CSI-RS2. The quasi-co-locationreference signal of the DMRS port group 2 of the PDSCH/CORESET is atleast one of CSI-RS3 or CSI-RS4. The quasi-co-location parameters,including a Doppler shift, a Doppler spread, an average delay and adelay spread, of the DMRS port group 2 of the PDSCH/CORESET are acquiredaccording to CSI-RS3, and the quasi-co-location parameter, including aSpatial Rx parameter, is acquired according to CSI-RS4. Onequasi-co-location parameter can be associated with only onequasi-co-location reference signal in one quasi-co-location referencesignal set.

TABLE 1 TCI state Quasi-co-location (quasi-co-location reference signal:ID reference signal set quasi-co-location parameter) 1 Set 1 (CSI-RS1:Doppler shift, Doppler spread, average delay, delay spread) (CSI-RS2:Spatial Rx parameter) Set 2 (CSI-RS3: Doppler shift, Doppler spread,average delay, delay spread) (CSI-RS4: Spatial Rx parameter) 2 Set 1(CSI-RS5: Doppler shift, Doppler spread, average delay, delay spread)(CSI-RS5: Spatial Rx parameter)

When the CORESET is CORESET0, the RRC signaling does not configure a TCIstate list for CORESET0 in the configuration indication of CORESET0 sothat CORESET0 does not have a corresponding TCI state list. At thispoint, if the MAC-CE signaling is intended to active a TCI state forCORESET0, the MAC-CE needs to determine a TCI state list in which theTCI state activated for the MAC-CE is located so that a first node mayknow the index of which TCI state list, in which the TCI statecorresponding to the TCI state ID (that is, the index information of thetransmission configuration indication) activated for the MAC-CEsignaling is. Thus, there are the following schemes.

In Scheme 1, the TCI state list of CORESET0 is a TCI state listconfigured for the PDSCH in a BWP in the active state at a predeterminedtime.

In Scheme 2, the TCI state list of CORESET0 belongs to a TCI state listconfigured in a CORESET having the lowest CORESETID in the set ofCORESET, other than CORESET0, in the BWP in the active state at thepredetermined time.

In Scheme 3, the TCI state list of CORESET0 belongs to a TCI state listconfigured for the PDSCH in a default BWP at the predetermined time.

In Scheme 4, the TCI state list of CORESET0 belongs to a TCI state listconfigured in the CORESET having the lowest CORESETID in the set ofCORESET, other than CORESET0, in the default BWP at the predeterminedtime.

In Scheme 5, the TCI state list of CORESET0 belongs to a TCI state listconfigured for the PDSCH in an Initial BWP at the predetermined time.

In Scheme 6, the TCI state list of CORESET0 belongs to a TCI state listconfigured in the CORESET having the lowest CORESETID in the set ofCORESET, other than CORESET0, in the Initial BWP at the predeterminedtime.

In Scheme 7, the TCI state list of CORESET0 belongs to a TCI state listconfigured for the PDSCH in a BWP having the lowest BWPID in apredetermined BWP set at the predetermined time.

In Scheme 8, the TCI state list of CORESET0 belongs to a TCI state listconfigured in a CORESET having the lowest CORESETID in the set ofCORESET, other than CORESET0, in the BWP having the lowest BWPID in thepredetermined BWP set at the predetermined time.

In Schemes 7 and 8, the BWP in the predetermined BWP satisfies at leastone of the following characteristics.

The BWP includes resources occupied by CORESET0. For example, the BWPincludes frequency domain resources occupied by CORESET0.

The intersection between time resources of the BWP in the active stateand monitoring time resources corresponding to a search space associatedwith CORESET0 is non-null.

In Scheme 9, the TCI state list of CORESET0 belongs to a TCI state listcorresponding to a PDSCH that the first node needs to receive or bufferin a time unit (which, for example, may be a slot, and of course, whichmay also be other time units) closest to the predetermined time.

In Scheme 10, the TCI state list of CORESET0 belongs to a TCI state listcorresponding to a CORESET having the lowest CORESETID, which the firstnode needs to receive or buffer or monitor in the set of CORESET, otherthan CORESET0, in the time unit (which, for example, may be a slot, andof course, which may also be other time units) closest to thepredetermined time.

In Scheme 11, when the number of BWPs, other than the Initial BWP,configured for the first node is less than 4, the TCI state list ofCORESET0 belongs to a TCI state list corresponding to a PDSCH in theInitial BWP. When the number of BWPs, other than the Initial BWP,configured for the first node is greater than or equal to 4, the TCIstate list of CORESET0 belongs to a TCI state list corresponding to thePDSCH in a BWP having the lowest BWPID in a set of BWPs other than theInitial BWP.

In Scheme 12, when no TCI state list is configured for a PDSCH or aCORESET, other than COERSET0, in the Initial BWP, the TCI state list ofCORESET0 belongs to a TCI state list configured by a PDSCH in a BWPother than the Initial BWP or a CORESET other than COERSET0, and when aTCI state list is configured for the PDSCH or the CORESET other thanCOERSET0 in the Initial BWP, the TCI state list of CORESET0 belongs to aTCI state list configured by the PDSCH or the CORESET other thanCOERSET0 in the Initial BWP.

In the above schemes, if more than one PDSCH-configuration (hereinabbreviated as PDSCH-config) is included in one BWP, there is also aneed to determine that the TCI state list of CORESET0 is the TCI statelist included in which PDSCH-config of the BWP in the active state orInitial BWP or default BWP or BWP having the lowest BWPID. For example,it is determined that the TCI state list of CORESET0 is a TCI state listincluded in the PDSCH-config corresponding to the lowestPDSCH-config-ID.

In the above schemes, the predetermined time includes one of a time unitin which a PDSCH carrying the MAC-CE signaling (that is, the secondcontrol signaling) of the TCI state activated for the CORESET0 islocated; a start time at which TCI state information carried in theMAC-CE signaling carrying the TCI state activated for the CORESET0 canbe used in CORESET0, such as 3 ms after the successful reception of theMAC-CE; the predetermined time which is associated with the MAC-CE; or amonitoring time of a search space of CORESET0, for example, whenCORESET0 search space 1 is monitored at time 1, the predetermined timeis time 1, or when CORESET0 search space 1 is monitored at time 2, thepredetermined time is time 2.

In the above schemes, the TCI state list corresponding to CORESET0 isobtained according to a convention rule. In another scheme of thepresent embodiment, the TCI state list corresponding to CORESET0 mayalso be notified through explicit signaling. In view of this, there maybe schemes described below.

In Scheme A, the RRC signaling explicitly configures the TCI state listof CORESET0.

In Scheme B, the RRC signaling or the MAC-CE signaling notifies BWPindex information corresponding to the TCI state list of CORESET0, wherethe TCI state list of CORESET0 belongs to a TCI state list configured ina PDSCH or a CORESET other than CORESET0 in a BWP corresponding to theBWP index information.

In Scheme C, the RRC signaling or the MAC-CE signaling notifies (BWPindex information, CORESET index information) corresponding to the TCIstate list of CORESET0, where the TCI state list of CORESET0 belongs toa TCI state list configured in a CORESET corresponding to (BWP indexinformation, CORESET index information).

In Scheme D, the RRC signaling or the MAC-CE signaling notifies (BWPindex information, data channel (PDSCH-config) index information)corresponding to the TCI state list of CORESET0, where the TCI statelist of CORESET0 belongs to a TCI state list configured in a CORESETcorresponding to (BWP index information, data channel (PDSCH-config)index information).

In an implementation, the above-mentioned MAC-CE signaling may be MAC-CEsignaling for activating a TCI state of a CORESET.

In Scheme E, in the MAC-CE signaling carrying the TCI state activatedfor CORESET0, when the CORESETID indicator field indicates CORESET0, aserving cell ID and first information are jointly encoded, or at leastone specific indicator field of the serving cell ID is used forindicating the first information. The first information includes atleast one of a BWP index, a CORESET index, a PDSCH-config index, aTCI-state list index, or the TCI-state list of CORESET0 belonging to aTCI-state list corresponding to the first information. For example, whenthe CORESETID indicator field does not indicate CORESET0, the MAC-CEsignaling for activating a TCI state for a CORESET does not carry thefirst information, and when the CORESETID indication field indicatesCORESET0, the MAC-CE signaling for activating a TCI state for a CORESETcarries the first information.

In the above embodiments, an index of configuration indicationinformation of a quasi-co-location reference signal is a TCI state ID.

In the above-mentioned schemes, the TCI state list corresponding to thePDSCH or the CORESET having the lowest CORESETID satisfies at least oneof the following characteristics.

The number of first-type TCI states in the TCI state list is greaterthan the fourth predetermined value, where a quasi-co-location referencesignal corresponding to the first-type TCI state and a synchronizationsignal satisfy a quasi-co-location relationship.

The number of TCI states included in the TCI state list is greater thanthe third predetermined value.

The BWP and CORESET0 are located in the same CC, that is, both are inone serving cell, where the PDSCH or CORESET is located in the BWP.

In the above-mentioned schemes, the TCI state list of CORESET0 belongsto the TCI state list corresponding to the PDSCH or the CORESET havingthe lowest CORESETID. In an implementation, the TCI state list ofCORESET0 is the above-mentioned TCI state list corresponding to thePDSCH or the CORESET having the lowest CORESETID. In anotherimplementation, the TCI state list of CORESET0 is composed of thefirst-type TCI states in the above-mentioned TCI state listcorresponding to the PDSCH or the CORESET having the lowest CORESETID.

With reference to FIG. 3, another embodiment of the present disclosureprovides an apparatus for determining a quasi-co-location referencesignal. The apparatus includes a transmission configuration indicationlist determination module 301, a transmission configuration indicationindex information determination module 302, and a firstquasi-co-location reference signal determination module 303.

The transmission configuration indication list determination module 301is configured to determine a first transmission configuration indicationlist corresponding to a first control channel element.

The transmission configuration indication index informationdetermination module 302 is configured to determine index information oftransmission configuration indication activated for the first controlchannel element in the first transmission configuration indication list.

The first quasi-co-location reference signal determination module 303 isconfigured to determine a quasi-co-location reference signal activatedfor the first control channel element according to the index informationand the first transmission configuration indication list.

In another embodiment of the present disclosure, one piece oftransmission configuration indication in the first transmissionconfiguration indication list corresponds to at least one respectivequasi-co-location reference signal set.

In another embodiment of the present disclosure, at least one of thecharacteristics described below is included.

One quasi-co-location parameter associates only one reference signal inone quasi-co-location reference signal set.

The difference set of the quasi-co-location parameter sets associatedwith different quasi-co-location reference signal sets is null.

One quasi-co-location reference signal set can only include at most tworeference signals.

In another embodiment of the present disclosure, the transmissionconfiguration indication list determination module 301 is configured todetermine the first transmission configuration indication listcorresponding to the first control channel element by using at least oneof the following manners.

The first transmission configuration indication list is determinedaccording to first control signaling.

The first transmission configuration indication list is determinedaccording to determination of whether the first control channel elementbelongs to a predetermined control channel element set.

The first transmission configuration indication list is determinedaccording to the number of BWPs configured other than an initial BWP.

The first transmission configuration indication list is determinedaccording to determination of whether a transmission configurationindication list is configured for a channel element corresponding to aBWP, where the BWP satisfies a first predetermined characteristicconfigures.

The first transmission configuration indication list is determinedaccording to determination result of whether a transmissionconfiguration indication list configured for a predetermined channelelement satisfies a third predetermined characteristic.

In response to satisfying a first predetermined condition, serving cellindex information in the second control signaling and the firsttransmission configuration indication list information are jointlyencoded.

In response to satisfying the first predetermined condition, the secondcontrol signaling carries the first transmission configurationindication list information.

In response to satisfying the first predetermined condition, the servingcell index information in the second control signaling is used forindicating the first transmission configuration indication list.

In the above characteristics, the first predetermined condition includesat least one of the first control channel element belongs to thepredetermined control channel element set, the number of the servingcells is less than a first predetermined value, or the number of servingcells configured with the predetermined control channel element set isless than a second predetermined value.

In another embodiment of the present disclosure, the first controlsignaling carries first transmission configuration indication listinformation.

Alternatively, the first control signaling carries BWP indexinformation, where the first transmission configuration indication listbelongs to a second transmission configuration indication listconfigured in configuration indication of a first channel element in aBWP corresponding to the BWP index information.

Alternatively, the first control signaling carries at least one of BWPindex information, channel element index information, or first controlchannel element index information, where the first transmissionconfiguration indication list belongs to a third transmissionconfiguration indication list configured in configuration indication ofa second channel element corresponding to both the BWP index informationand the channel element index information, where the second channelelement is a channel element corresponding to channel element indexinformation in the BWP corresponding to the BWP index information.

In another embodiment of the present disclosure, the first transmissionconfiguration indication list belongs to the third transmissionconfiguration indication list, which includes the following case.

A quasi-co-location reference signal and a synchronization signalsatisfy a quasi-co-location relationship with respect to a type ofquasi-co-location parameters, where the quasi-co-location referencesignal corresponds to the transmission configuration indication, whichbelongs to the first transmission configuration indication list in thethird transmission configuration indication list.

In another embodiment of the present disclosure, the first controlchannel element or the first channel element or the second channelelement satisfies at least one of the following characteristics.

The first control channel element and a control channel element includedin the first channel element are two different control channel elements.

The first control channel element and a control channel element includedin the second channel element are two different control channelelements.

The first control channel element or the control channel elementincluded in the first channel element or the control channel elementincluded in the second channel element is a downlink control channelelement.

The first control channel element or the control channel elementincluded in the first channel element or the control channel elementincluded in the second channel element includes at least one of acontrol channel resource set, a search space set, a search space, or acandidate control channel.

The frequency domain bandwidth corresponding to the BWP indexinformation includes resources occupied by the first control channelelement.

The first channel element includes at least one of a data channelelement or a control channel element.

The frequency domain bandwidth in which the first channel element islocated is different from the frequency domain bandwidth in which thefirst control channel element is located.

The second channel element includes at least one of a data channelelement or a control channel element.

The frequency domain bandwidth in which the second channel element islocated is different from the frequency domain bandwidth in which thefirst control channel element is located.

In another embodiment of the present disclosure, the transmissionconfiguration indication list determination module 301 is configured todetermine the first transmission configuration indication list accordingto the determination of whether the first control channel elementbelongs to the predetermined control channel element set by using atleast one of the following manners.

In response to the first control channel element not belonging to thepredetermined control channel element set, the first transmissionconfiguration indication list is a transmission configuration indicationlist configured for the first control channel element in a third controlsignaling, where the third control signaling carries a first controlchannel element index.

In response to the first control channel element belonging to thepredetermined control channel element set, the first transmissionconfiguration indication list belongs to a transmission configurationindication list configured for a third channel element in fourth controlsignaling, where the fourth control signaling does not carry the firstcontrol channel element index.

In the above manners, the predetermined control channel element setincludes at least one of a control channel resource set 0 or a searchspace set 0.

In another embodiment of the present disclosure, the third channelelement satisfies at least one of the following characteristics.

A BWP in which the third channel element is located satisfies the firstpredetermined characteristic at a predetermined time.

The third channel element satisfies a second predeterminedcharacteristic at the predetermined time.

A transmission configuration indication list configured in the thirdchannel element satisfies the third predetermined characteristic.

An intersection of a control channel element set included in the thirdchannel element and the predetermined control channel element set isnull.

The third channel element includes at least one of a data channelelement or a control channel element.

In another embodiment of the present disclosure, the first predeterminedcharacteristic includes at least one of the following characteristics.

The BWP is in an active state.

The BWP is the initial BWP.

The BWP is a default BWP.

The BWP and a BWP in which the first control channel element is locatedbelong to the same CC.

The BWP includes a resource occupied by the first control channelelement.

The BWP is a BWP having the lowest BWP index in a BWP set.

The BWP includes at least one predetermined type of channel elements,where the predetermined type of channel elements does not include thefirst control channel element.

In another embodiment of the present disclosure, the secondpredetermined characteristic includes at least one of the followingcharacteristics.

The third channel element is a channel element transmitted in a timeunit closest to the predetermined time.

The third channel element is a control channel element having apredetermined control channel element index in a set of a controlchannel element, other than the first control channel element, in thetime unit closest to the predetermined time.

The third channel element is a control channel element having thepredetermined control channel element index in a set of a controlchannel element other than the first control channel element in the BWPsatisfying the first predetermined characteristic at the predeterminedtime.

The third channel element is a control channel element having apredetermined control channel element index in a set of a controlchannel element, other than the first control channel element in thetime unit closest to the predetermined time.

The third channel element is a control channel element having thepredetermined control channel element index in the BWP satisfying thefirst predetermined characteristic at the predetermined time.

In the above characteristics, the predetermined control channel elementindex includes any one of the lowest control channel element index orthe highest control channel element index.

In another embodiment of the present disclosure, the transmissionconfiguration indication index information determination module 302 isconfigured to execute the following operation.

The index information is determined according to second controlsignaling, where the second control signaling includes the indexinformation.

The predetermined time includes at least one of a transmission time ofthe second control signaling or a time unit in which the transmissiontime is located; a start time at which transmission configurationindication carried in the second control signaling can be used forreceiving the first control channel element or a time unit in which thestart time is located; the predetermined time which is associated withsecond control signaling information; or a monitoring time of the firstcontrol channel element or a time unit in which the monitoring time islocated.

In another embodiment of the present disclosure, the second controlsignaling satisfies at least one of the following characteristics.

In response to satisfying a first predetermined condition, serving cellindex information in the second control signaling and the firsttransmission configuration indication list information are jointlyencoded.

In response to satisfying the first predetermined condition, the secondcontrol signaling carries the first transmission configurationindication list information.

In response to satisfying the first predetermined condition, the servingcell index information in the second control signaling is used forindicating the first transmission configuration indication list.

The second control signaling is a MAC-CE control signaling.

In the above characteristics, the first predetermined condition includesat least one of the first control channel element belongs to thepredetermined control channel element set, the number of the servingcells is less than a first predetermined value, or the number of servingcells configured with the predetermined control channel element set isless than a second predetermined value.

The first transmission configuration indication list informationincludes at least one of the BWP index information, the first controlchannel element index information, the channel element indexinformation, or transmission configuration indication list indexinformation.

In another embodiment of the present disclosure, the third predeterminedcharacteristic includes at least one of the following characteristics.

The number of elements included in the transmission configurationindication list is greater than the third predetermined value, where thetransmission configuration indication list is configured for thepredetermined channel element or for the third channel element.

The number of pieces of first-type transmission configuration indicationis greater than a fourth predetermined value, where the pieces offirst-type transmission configuration indication are comprised in thetransmission configuration indication list configured for thepredetermined channel element or for the third channel element, and eachquasi-co-location reference signal corresponding to the first-typetransmission configuration indication and a synchronization signalsatisfy a quasi-co-location relationship.

The number of pieces of second-type transmission configurationindication is greater than a fifth predetermined value, where the piecesof second-type transmission configuration indication are comprised inthe transmission configuration indication list configured for thepredetermined channel element or for the third channel element, and aquasi-co-location reference signal and a synchronization signal satisfya quasi-co-location relationship, where the quasi-co-locationcorresponds to the second-type transmission configuration indication andis associated with a predetermined type of quasi-co-location parameters.

In another embodiment of the present disclosure, the transmissionconfiguration indication list determination module 301 is configured todetermine the first transmission configuration indication list accordingto the number of BWPs configured other than the initial BWP by using atleast one of the following manners.

In response to the number of the BWPs configured other than the initialBWP being less than a sixth predetermined value, the first transmissionconfiguration indication list belongs to a fourth transmissionconfiguration indication list configured for configuration indication ofa fourth channel element in the initial BWP.

In response to the number of the BWPs configured other than the initialBWP being greater than or equal to the sixth predetermined value, thefirst transmission configuration indication list belongs to a fifthtransmission configuration indication list configured for configurationindication of a fifth channel element in a BWP having a lowest BWPindex, other than the initial BWP, in a BWP set.

In another embodiment of the present disclosure, the transmissionconfiguration indication list determination module 301 is configured todetermine the first transmission configuration indication list accordingto the determination of whether the channel element corresponding to theBWP satisfying the first predetermined characteristic configures thetransmission configuration indication list by using at least one of thefollowing manners.

In response to the channel element, which corresponds to the BWPsatisfying the first predetermined characteristic, not be configuredwith the transmission configuration indication list, the firsttransmission configuration indication list belongs to a sixthtransmission configuration indication list configured for configurationindication of a sixth channel element in a BWP other than the initialBWP.

In response to the channel element, which corresponds to the BWPsatisfying the first predetermined characteristic, being configured withthe transmission configuration indication list, the first transmissionconfiguration indication list belongs to a seventh transmissionconfiguration indication list configured for configuration indication ofa seventh channel element in the initial BWP.

In another embodiment of the present disclosure, the first transmissionconfiguration indication list belongs to an X^(th) transmissionconfiguration indication list, where X is a value ranging from 2 to 7,which includes the following case.

A quasi-co-location reference signal and a synchronization signalsatisfy a quasi-co-location relationship with respect to a type ofquasi-co-location parameters, where the quasi-co-location corresponds totransmission configuration indication belonging to the firsttransmission configuration indication list in the X^(th) transmissionconfiguration indication list.

In another embodiment of the present disclosure, the type ofquasi-co-location parameters satisfies at least one of the followingcharacteristics.

The type of quasi-co-location parameters includes at least one of aDoppler shift, a Doppler spread, an average delay, a delay spread, or anaverage gain.

The type of quasi-co-location parameters does not include a spatialreception filtering parameter.

In another embodiment of the present disclosure, the first controlchannel element or an i^(th) channel element satisfies at least one ofthe following characteristics, where i is a value ranging from 1 to 7.

The first control channel element and a control channel element includedin the i^(th) channel element are two different control channelelements.

A control channel element included in at least one of the first controlchannel element or the i^(th) channel element includes at least one of acontrol channel resource set, a search space set, a search space, acandidate control channel, or a downlink control channel.

The i^(th) channel element includes at least one of a data channelelement or a control channel element.

A frequency domain bandwidth in which the i^(th) channel element islocated is different from a frequency domain bandwidth in which thefirst control channel element is located.

A transmission configuration indication list configured in the i^(th)channel element satisfies the third predetermined characteristic.

In another embodiment of the present disclosure, the third predeterminedcharacteristic includes at least one of the following characteristics.

The number of elements is greater than the third predetermined value,where the elements are included in the transmission configurationindication list configured for the predetermined channel element or forthe third channel element.

The number of pieces of first-type transmission configuration indicationis greater than a fourth predetermined value, where the pieces offirst-type transmission configuration indication are included in thetransmission configuration indication list configured for thepredetermined channel element or for the third channel element, and eachquasi-co-location reference signal corresponding to the first-typetransmission configuration indication and a synchronization signalsatisfy a quasi-co-location relationship.

The number of pieces of second-type transmission configurationindication is greater than a fifth predetermined value, where the piecesof second-type transmission configuration indication are included in thetransmission configuration indication list configured for thepredetermined channel element or for the third channel element; and aquasi-co-location reference signal and a synchronization signal satisfya quasi-co-location relationship, where the quasi-co-location referencesignal corresponds to the second-type transmission configurationindication and is associated with a predetermined type ofquasi-co-location parameters.

In another embodiment of the present disclosure, the transmissionconfiguration indication index information determination module 302 isconfigured to determine the index information of the transmissionconfiguration indication activated for the first control channel elementin the first transmission configuration indication list by using atleast one of the following manners.

In response to satisfying a second predetermined condition, the indexinformation is determined according to the second control signaling,where the second control signaling includes the index information.

In response to not satisfying the second predetermined condition, aquasi-co-location reference signal of the first control channel elementis a quasi-co-location reference signal corresponding to at least onetransmission configuration indication index predetermined in the firsttransmission configuration indication list.

In the above manners, the second preset condition includes the followingcondition.

The number of pieces of transmission configuration indication includedin the first transmission configuration indication list is greater thana seventh predetermined value.

In another embodiment of the present disclosure, the first controlsignaling or the second control signaling satisfies at least one of thefollowing characteristics.

The first control signaling and the first control channel element are inan association relationship.

The first control signaling further carries the first control channelelement information.

The second control signaling is MAC-CE control signaling.

The first control signaling and the second control signaling are thesame control signaling.

The first control signaling is RRC signaling.

In another embodiment of the present disclosure, the firstquasi-co-location reference signal determination module 303 isconfigured to execute the following operations.

The transmission configuration indication activated for the firstcontrol channel element is determined according to the index informationand the first transmission configuration indication list.

The quasi-co-location reference signal activated for the first controlchannel element is determined according to the transmissionconfiguration indication activated for the first control channelelement.

In another embodiment of the present disclosure, the quasi-co-locationreference signal activated for the first control channel elementcorresponds to at least two synchronization signal blocks, and theapparatus further includes a monitoring occasion determination module304.

The monitoring occasion determination module 304 is configured todetermine a monitoring occasion of the first control channel elementaccording to the at least two synchronization signal blockscorresponding to the quasi-co-location reference signal activated forthe first control channel element.

The first control channel element includes at least one of a controlchannel resource set 0 or a search space set 0.

The implementation process of the apparatus for determining aquasi-co-location reference signal is the same as the implementationprocess of the method for determining a quasi-co-location referencesignal in the above-mentioned embodiments, and will not be repeatedherein.

Another embodiment of the present disclosure provides a device fordetermining a quasi-co-location reference signal. The device includes aprocessor and a computer-readable storage medium, where thecomputer-readable storage medium is configured to store instructionswhich, when executed by the processor, implement any of the methods fordetermining a quasi-co-location reference signal described above.

Another embodiment of the present disclosure provides acomputer-readable storage medium. The computer-readable storage mediumstores a computer program which, when executed by a processor,implements steps of any of the methods for determining aquasi-co-location reference signal described above.

At present, in the standards, there is no limitation on the frequencydomain resource in which a target reference signal is located and thefrequency domain resource in which a target quasi-co-location referencesignal is located, which results in the inaccurate acquisition of a typeof quasi-co-location parameters of the target reference signal and theinaccurate reception of at least one of the channel or the signalcorresponding to the target reference signal, thereby reducing thespectral efficiency. For the above-mentioned problems, the presentdisclosure provides the above-mentioned solutions, which can effectivelyimprove the acquisition accuracy of a type of quasi-co-locationparameters of the target reference signal and improve the spectralefficiency. There may be certain configurations for the reference signalinformation in the standards, and these configurations may prevent thesystem from working normally. For this problem, some solutions areprovided herein to enable the system to function properly.

With reference to FIG. 4, another embodiment of the present disclosureprovides a method for determining a quasi-co-location reference signal.The method includes step 400 described below.

In step 400, in response to satisfying a third predetermined condition,a quasi-co-location reference signal of a reference parameter isdetermined according to a quasi-co-location reference signal of acontrol channel element satisfying a fifth predetermined characteristicin a second time unit, where the second time unit is latest to at leastone of a channel or a signal corresponding to the reference signal in aset of first time units, and each of the first time units includes acontrol channel element satisfying a fourth predeterminedcharacteristic.

In another embodiment of the present disclosure, the method furtherincludes step 401 described below.

In step 401, the reference signal is transmitted according to thequasi-co-location reference signal of the reference parameter.

In another embodiment of the present disclosure, the fourthpredetermined characteristic includes at least one of the followingcharacteristics.

An intersection of the control channel element and a control channelelement whose index is 0 is null, that is, the control channel elementis not CORESET0.

In response to the first time unit satisfying a fourth predeterminedcondition, the control channel element includes the control channelelement whose index is 0.

The control channel element and at least one of the channel or thesignal corresponding to the reference signal are in the same frequencydomain bandwidth.

The control channel element and a BWP in an active state in the firsttime unit satisfy a sixth predetermined characteristic.

A first frequency domain resource in which the control channel elementis located and a second frequency domain resource corresponding to theBWP in the active state in the first time unit satisfy a fifthpredetermined condition.

A third frequency domain resource in which a quasi-co-location referencesignal, which is associated with a type of quasi-co-location parameters,of the control channel element is located and the second frequencydomain resource corresponding to the BWP in the active state in thefirst time unit satisfy the fifth predetermined condition, where thesecond frequency domain resource corresponding to the BWP is a set ofPRBs included in the BWP.

In another embodiment of the present disclosure, that the first timeunit satisfies the fourth predetermined condition includes at least oneof the following conditions.

The BWP in the active state in the first time unit is a predeterminedBWP, where the predetermined BWP includes one of a BWP whose index is 0,a BWP whose index is 1, or a transmission configuration indication listcorresponding to a control element whose index is 0 belongs to atransmission configuration indication list included in the predeterminedBWP.

The BWP in the active state in the first time unit includes a frequencydomain resource corresponding to an initial BWP.

The BWP in the active state in the first time unit and the controlchannel element whose index is 0 satisfy the sixth predeterminedcharacteristic.

In another embodiment of the present disclosure, the control channelelement and the BWP in the active state in the first time unit satisfythe sixth predetermined characteristic that includes at least one of thefollowing characteristics.

Configuration indication of the BWP includes configuration indication ofthe control channel element.

The configuration indication of the BWP includes configurationindication of at least one search space set associated with the controlchannel element, that is, frequency domain resources of the search spaceare frequency domain resources occupied by the control channel element,and candidate control channels in the search space set are distributedamong the frequency domain resources determined by the control channelelement.

The BWP includes a frequency domain resource in which the controlchannel element is located.

The BWP includes a frequency domain resource corresponding to a firstBWP, where configuration indication of the first BWP includes theconfiguration indication of the control channel element.

An intersection between a time resource of the BWP in the active stateand a monitoring time resource of the control channel element isnon-null, where a monitoring time of the control channel element is aunion set of monitoring times of at least one search space setassociated with the control channel element.

In another embodiment of the present disclosure, the control channelelement satisfying the fifth predetermined characteristic includes acontrol channel element. The control channel element has the lowestcontrol channel element index in a set composed of control channelelements, the control channel elements satisfy the fourth predeterminedcharacteristic in a second time unit, and the second time unit isclosest to at least one of the channel or the signal corresponding tothe reference signal.

In another embodiment of the present disclosure, that at least one ofthe channel or the signal corresponding to the reference signalsatisfies the third predetermined condition includes at least one of thefollowing conditions.

A time interval between a control channel and at least one of thechannel or the signal corresponding to the reference signal is less thana predetermined threshold, where the control channel is used forscheduling at least one of the channel or the signal corresponding tothe reference signal.

A fourth frequency domain resource and a fifth frequency domain resourcein which at least one of the channel or the signal corresponding to thereference signal is located do not satisfy the fifth predeterminedcondition, and the control channel for scheduling at least one of thechannel or the signal corresponding to the reference signal does notinclude indication information of transmission configuration indication,where a quasi-co-location reference signal of the control channel islocated in the fourth frequency domain resource and is associated with atype of quasi-co-location, and the control channel is used forscheduling at least one of the channel or the signal corresponding tothe reference signal.

A sixth frequency domain resource in which the control channel forscheduling at least one of the channel or the signal corresponding tothe reference signal is located and the fifth frequency domain resourcein which at least one of the channel or the signal corresponding to thereference signal is located do not satisfy the fifth predeterminedcondition, and the control channel for scheduling at least one of thechannel or the signal corresponding to the reference signal does notinclude the indication information of the transmission configurationindication.

A twelfth frequency domain resource and the fifth frequency domainresource in which at least one of the channel or the signalcorresponding to the reference signal is located satisfy the fifthpredetermined condition, where a quasi-co-location reference signal ofthe control channel is located in the twelfth frequency domain resourceand is associated with a type of quasi-co-location parameters, and thecontrol channel element satisfies the fifth predeterminedcharacteristic.

A thirteenth frequency domain resource in which a second signal islocated and the fifth frequency domain resource in which at least one ofthe channel or the signal corresponding to the reference signal islocated satisfy the fifth predetermined condition, where the secondsignal and a quasi-co-location reference signal of the control channelelement satisfy a quasi-co-location relationship with respect to a typeof quasi-co-location parameters, and the control channel satisfies thefifth predetermined characteristic or is used for scheduling thereference signal.

A thirteen frequency domain resource in which the control channelelement satisfying the fifth predetermined characteristic is located andthe fifth frequency domain resource in which at least one of the channelor the signal corresponding to the reference signal is located satisfythe fifth predetermined condition.

A seventh frequency domain resource and the fifth frequency domainresource in which at least one of the channel or the signalcorresponding to the reference signal is located do not satisfy thefifth predetermined condition, where a quasi-co-location referencesignal is located in the seventh frequency domain resource and isassociated with a type of quasi-co-location parameters in transmissionconfiguration indication, and the transmission configuration indicationis used for indicating the reference signal and in the control channelfor scheduling the reference signal.

A quasi-co-location reference signal is received by the communicationnode, where the quasi-co-location reference signal is associated with aspatial reception filtering parameter which is included in at least onepiece of transmission configuration indication information.

In another embodiment of the present disclosure, the predeterminedthreshold is obtained according to at least one of reported capabilityinformation; a subcarrier spacing corresponding to at least one of thechannel or the signal corresponding to the reference signal; asubcarrier spacing corresponding to the reported capability information;the subcarrier spacing corresponding to the control channel forscheduling at least one of the channel or the signal corresponding tothe reference signal; a subcarrier spacing corresponding to a controlchannel element satisfying a fifth predetermined characteristic; or asub carrier spacing used for calculating the time interval.

In another embodiment of the present disclosure, the time interval isobtained according to at least one of a subcarrier spacing correspondingto the control channel for scheduling at least one of the channel or thesignal corresponding to the reference signal; the subcarrier spacingcorresponding to the control channel element satisfying the fifthpredetermined characteristic; or the subcarrier spacing used forcalculating the time interval.

In another embodiment of the present disclosure, at least one of thechannel or the signal corresponding to the reference signal satisfiesone of the following characteristics.

The fifth frequency domain resource in which at least one of the channelor the signal corresponding to the reference signal is located and aneighth frequency domain resource in which a quasi-co-location referencesignal, which is associated with a type of quasi-co-location parameters,of the reference signal, is located satisfy a fifth predeterminedcondition.

The fifth frequency domain resource in which at least one of the channelor the signal corresponding to the reference signal is located and aninth frequency domain resource in which a second signal is locatedsatisfy the fifth predetermined condition, where the second signal andthe reference signal satisfy a quasi-co-location relationship withrespect to a type of quasi-co-location parameters.

In response to a frequency domain bandwidth in which at least one of thechannel or the signal corresponding to the reference signal is locatedbeing different from a frequency domain bandwidth in which thequasi-co-location reference signal, which is associated with the type ofquasi-co-location parameters, of the reference signal is located, thefifth frequency domain resource in which at least one of the channel orthe signal corresponding to the reference signal is located and theeighth frequency domain resource in which the quasi-co-locationreference signal, which is associated with the type of quasi-co-locationparameters, of the reference signal is located satisfy the fifthpredetermined condition.

In response to the frequency domain bandwidth in which at least one ofthe channel or the signal corresponding to the reference signal islocated being different from a frequency domain bandwidth in which thesecond signal is located, the fifth frequency domain resource in whichat least one of the channel or the signal corresponding to the referencesignal is located and a tenth frequency domain resource in which thesecond signal is located satisfy the fifth predetermined condition,where the second signal and the quasi-co-location reference signal ofthe reference parameter satisfy a quasi-co-location relationship withrespect to a type of quasi-co-location parameters.

In response to the frequency domain bandwidth in which at least one ofthe channel or the signal corresponding to the reference signal islocated being different from the frequency domain bandwidth in which thequasi-co-location reference signal, which is associated with the type ofquasi-co-location parameters, of the reference signal is located and thefifth frequency domain resource in which at least one of the channel orthe signal corresponding to the reference signal is located and theeighth frequency domain resource in which the quasi-co-locationreference signal, which is associated with the type of quasi-co-locationparameters, of the reference signal is located not satisfying the fifthpredetermined condition, the third predetermined condition is satisfied.

In response to the frequency domain bandwidth in which the at least oneof the channel or the signal corresponding to the reference signal islocated being different from the frequency domain bandwidth in which thesecond signal is located and the fifth frequency domain resource inwhich the at least one of the channel or the signal corresponding to thereference signal is located and the tenth frequency domain resource inwhich the second signal is located satisfying the fifth predeterminedcondition, the third predetermined condition is satisfied, where thesecond signal and the quasi-co-location reference signal of thereference parameter satisfy a quasi-co-location relationship withrespect to a type of quasi-co-location parameters.

In another embodiment of the present disclosure, in response to at leastone of the quasi-co-location reference signal of the reference parameteror the second signal being a tracking reference signal, a frequencydomain span of the tracking reference signal is greater than or equal toa frequency domain span Y, where the frequency domain span Y is obtainedin one of the following manners.

In response to a period of the tracking reference signal belonging to afirst period set, Y is min (52 PRBs, a frequency domain spancorresponding to at least one of the channel or the signal correspondingto the reference signal), where min denotes to calculate a minimumvalue.

In response to the period of the tracking reference signal not belongingto the first period set, Y is the frequency domain span corresponding toat least one of the channel or the signal corresponding to the referencesignal.

In the above manners, the frequency domain span corresponding to the atleast one of the channel or the signal corresponding to the referencesignal includes at least one of a set of frequency domain resourceblocks included in a BWP in which at least one of the channel or thesignal corresponding to the reference signal is located; or a set offrequency domain resource blocks between the highest indexed frequencydomain resource block and the highest indexed resource block in a set offrequency domain resource blocks occupied by at least one of the channelor the signal corresponding to the reference signal.

In another embodiment of the present disclosure, the first period setincludes the following period: 10 milliseconds.

In another embodiment of the present disclosure, that two frequencydomain resources satisfy the fifth predetermined condition includes atleast one of the following conditions.

A difference set of the two frequency domain resources is null, that is,the two frequency domain resources are the same frequency domainresource. For example, when the above-mentioned frequency domainresource is a CC/BWP, the CC1/BWP1 corresponding to one frequency domainresource and the CC2/BWP2 corresponding to the other frequency domainresource are the same BWP. For another example, when the above-mentionedfrequency domain resource is a frequency domain resource block set, afrequency domain resource block set corresponding to one frequencydomain resource is the same as a frequency domain resource block setcorresponding to the other frequency domain resource. For anotherexample, when the above-mentioned frequency domain resource is a spancorresponding to a frequency domain resource block set, the spancorresponding to the frequency domain resource block set correspondingto one frequency domain resource is the same as the span correspondingto the frequency domain resource block set corresponding to the otherfrequency domain resource.

A difference between a frequency domain span included in one of the twofrequency domain resources and a frequency domain span included in theother of the two frequency domain resources is less than a predeterminedvalue.

One of the two frequency domain resources belongs to the other of thetwo frequency domain resources.

An intersection of the two frequency domain resources is non-null.

Subcarrier spacings of the two frequency domain resources are the same.

In another embodiment of the present disclosure, the type ofquasi-co-location parameters satisfies at least one of the followingcharacteristics.

The type of quasi-co-location parameters includes at least one of aDoppler shift, a Doppler spread, an average delay, a delay spread, or anaverage gain.

The type of quasi-co-location parameters does not include a spatialreception filtering parameter.

In another embodiment of the present disclosure, the frequency domainresource in which at least one of the channel, the signal, or thecontrol channel element is located includes at least one of a CC inwhich at least one of the channel, the signal, or the control channelelement is located; a BWP of the CC in which at least one of thechannel, the signal, or the control channel element is located; a set offrequency domain resource blocks occupied by at least one of thechannel, the signal, or the control channel element is located; or afrequency domain span corresponding to the set of frequency domainresource blocks occupied by at least one of the channel, the signal, orthe control channel element is located.

In another embodiment of the present disclosure, the method furtherincludes the step described below.

In response to no first time unit including the control channel elementsatisfying the fourth predetermined characteristic, schedulinginformation satisfying the third predetermined condition is not wantedto be received.

Embodiment One

In this embodiment, when PDSCH/aperiodic-channel stateinformation-reference signal (AP-CSI-RS) satisfies the thirdpredetermined condition, the quasi-co-location reference signal of thePDSCH/AP-CSI-RS is obtained according to a quasi-co-location referencesignal set of a CORESET, where the CORESET satisfies a fifthpredetermined characteristic and is in a second time unit latest to thePDSCH/AP-CSI-RS, the second time unit is in a set of first time units,and each first time unit includes a CORESET which satisfies a fourthpredetermined characteristic.

The fourth predetermined characteristic includes at least one of thefollowing characteristics.

Characteristic 1: an intersection of the CORESET and a CORESET whoseindex is 0 is null, that is, the CORESET is not CORESET0.

Characteristic 2: the CORESET and the channel and/or signalcorresponding to the reference signal are in the same frequency domainbandwidth. For example, the CORESET is the same as at least one of theCC or the BWP in which at least one of the channel or the signal islocated.

Characteristic 3: the CORESET and a BWP in an active state in the firsttime unit satisfy a sixth predetermined characteristic.

Characteristic 4: a first frequency domain resource in which the controlchannel element is located and a second frequency domain resourcecorresponding to the BWP in the active state in the first time unitsatisfy a fifth predetermined condition.

Characteristic 5: a third frequency domain resource in which aquasi-co-location reference signal, which is associated with a type ofquasi-co-location parameters, of the control channel element is locatedand the second frequency domain resource corresponding to the BWP in theactive state in the first time unit satisfy the fifth predeterminedcondition, where the second frequency domain resource corresponding tothe BWP is a set of PRBs included in the BWP.

The quasi-co-location reference signal of the control channel element isthe quasi-co-location reference signal, which is associated with a typeof quasi-co-location parameters, of the control channel element.

That the PDSCH/AP-CSI-RS satisfies the third predefined conditionincludes at least one of the following conditions.

Condition 1: a time interval between a PDCCH for scheduling thePDSCH/AP-CSI-RS and the PDSCH/AP-CSI-RS is less than a predeterminedthreshold.

Condition 2: a fourth frequency domain resource in which aquasi-co-location reference signal, which is associated with a type ofquasi-co-location parameters, of the PDCCH for schedulingPDSCH/AP-CSI-RS is located and a fifth frequency domain resource inwhich the PDSCH/AP-CSI-RS is located do not satisfy the fifthpredetermined condition, and the PDCCH does not include indicationinformation of the quasi-co-location reference signal of thePDSCH/AP-CSI-RS. For example the PDCCH does not include TCI information.

Condition 3: a sixth frequency domain resource in which a CORESET, inwhich the PDCCH for scheduling PDSCH/AP-CSI-RS is located, is locatedand the fifth frequency domain resource in which the PDSCH/AP-CSI-RS islocated do not satisfy the fifth predetermined condition, and the PDCCHdoes not include the indication information of the quasi-co-locationreference signal of the PDSCH/AP-CSI-RS. For example the PDCCH does notinclude TCI information.

Condition 4: a seventh frequency domain resource and the fifth frequencydomain resource in which at least one of the channel or the signalcorresponding to the reference signal is located do not satisfy thefifth predetermined condition, where a quasi-co-location referencesignal of PDSCH/AP-CSI-RS indicated in a TCI of the PDCCH for schedulingthe PDSCH/AP-CSI-RS is located in the seventh frequency domain resource,and the quasi-co location reference signal is associated with a type ofquasi-co-location parameters.

The type of quasi-co-location parameters includes at least one of aDoppler shift, a Doppler spread, an average delay, a delay spread, or anaverage gain. Alternatively, the type of quasi-co-location parametersdoes not include a Spatial Rx parameter.

That the CORESET and the BWP in the active state in the first time unitsatisfy the sixth predetermined characteristic includes at least one ofthe following characteristics.

The configuration indication of the BWP includes configurationindication of the CORESET.

The configuration indication of the BWP includes configurationindication of at least one search space set associated with the CORESET,that is, frequency domain resources of the search space are frequencydomain resources occupied by the CORESET, and candidate control channelsin the search space set are distributed among the frequency domainresources determined by the CORESET.

The BWP includes a frequency domain resource in which the CORESET islocated.

The BWP includes a frequency domain resource corresponding to a firstBWP, where the configuration indication of the first BWP includes theconfiguration indication of the CORESET.

An intersection between a time resource of the BWP in the active stateand a monitoring time resource of the CORESET is non-null, where amonitoring time of the CORESET is a union set of monitoring times of atleast one search space set associated with the CORESET.

That two frequency domain resources satisfy the fifth predeterminedcondition includes at least one of the following conditions.

A difference set of the two frequency domain resources is null.

A difference between a frequency domain span included in one of the twofrequency domain resources and a frequency domain span included in theother of the two frequency domain resources is less than a predeterminedvalue.

One of the two frequency domain resources belongs to the other of thetwo frequency domain resources.

An intersection of the two frequency domain resources is non-null.

Subcarrier spacings of the two frequency domain resources are the same.

When there is no CORESET satisfying the fourth predeterminedcharacteristic, the communication node does not expect to receive aschedule in which a time interval between the PDCCH and thePDSCH/AP-CSI-RS is less than the predetermined threshold. For example,when no CORESET is configured in the CC/BWP in which the PDSCH/AP-CSI-RSis located or no CORESET satisfying the fourth predeterminedcharacteristic is configured, the time interval between the PDCCH andthe PDSCH cannot be less than the predetermined threshold.

The predetermined threshold is obtained according to at least one of thefollowing information.

The information is capability information reported by the communicationnode.

The information is a subcarrier spacing corresponding to at least one ofthe channel or the signal corresponding to the reference signal.

The information is proportional relationship between the subcarrierspacing corresponding to the capability information reported by thecommunication node and the subcarrier spacing corresponding to at leastone of the channel or the signal. For example, a minimum duration thatis reported by the terminal and is required for the terminal to use theTCI information indicated by the PDCCH for the reception of thePDSCH/AP-CSI-RS is 7 time domain symbols when the subcarrier spacing is60 kHz and the minimum duration is 28 time domain symbols when thesubcarrier spacing is 120 kHz. In this case, the predetermined thresholdis 7 time domain symbols when the subcarrier spacing of the BWP in whichthe PDSCH/AP-CSI-RS is located is 60 kHz, and the predeterminedthreshold is 28 time domain symbols when the subcarrier spacing of theBWP in which the PDSCH/AP-CSI-RS is located is 120 kHz. That is to say,since the absolute durations corresponding to the number of time domainsymbols corresponding to different subcarrier spacings are different inthe communication node capability report, the predetermined threshold is7 time domain symbols when the subcarrier spacing of the BWP in whichthe PDCCH is located is 60 kHz and the predetermined threshold is 28time domain symbols when the subcarrier spacing of the BWP in which thePDCCH is located is 120 kHz, where the PDCCH is a PDCCH for schedulingthe PDSCH, or the predetermined threshold is 7 time domain symbols whenthe subcarrier spacing of the BWP in which the CORESET satisfying thefifth predetermined characteristic is located is 60 kHz and thepredetermined threshold is 28 time domain symbols when the subcarrierspacing of the BWP in which the CORESET satisfying the fifthpredetermined characteristic is located is 120 kHz.

The information is a subcarrier spacing corresponding to the controlchannel for scheduling at least one of the channel or the signalcorresponding to the reference signal.

The information is a subcarrier spacing corresponding to a controlchannel element satisfying the fifth predetermined characteristic.

The information is a subcarrier spacing used for calculating the timeinterval.

As shown in FIG. 3, the subcarrier spacing of the BWP in which the PDCCHis located is different from the subcarrier spacing of the BWP in whichthe PDSCH is located. For example, the subcarrier spacing of BWP1 inwhich the PDCCH is located is 60 kHz, the subcarrier spacing of BWP2 inwhich the PDSCH is located is 120 kHz, and two slots in BWP2 correspondto one slot in BWP1. The time interval between the PDCCH and the PDSCHis obtained in at least one of the following manners.

Manner 1: the number of time domain symbols corresponding to the timeinterval is obtained with the subcarrier spacing of the BWP in which thePDCCH is located as the reference. At this point, as shown in FIG. 5,the time interval between the PDCCH and the PDSCH is

${N_{GAP} = {{N_{{PDCCH},{{BWP}\; 1}} + \left\lfloor {\frac{2^{\mu_{PDCCH}}}{2^{\mu_{PDSCH}}}N_{{PDSCH},{{BWP}\; 2}}} \right\rfloor} = {{11 + \left\lfloor {\frac{1}{2}*2} \right\rfloor} = 12}}},$

where N_(GAP) is the time interval.

Manner 2: acquisition parameters of the number of time domain symbolscorresponding to the time interval include a ratio between thesubcarrier spacing of the BWP of the PDCCH and the subcarrier spacing ofthe BWP of at least one of the PDSCH or AP-CSI-RS. As shown in FIG. 5,

$N_{GAP} = {{N_{{PSCCH},{{BWP}\; 2}} + \left\lfloor {\frac{2^{\mu_{PDSCH}}}{2^{\mu_{PDCCH}}}N_{{PDCCH},{{BWP}\; 1}}} \right\rfloor} = {{2 + \left\lfloor {\frac{2}{1}*11} \right\rfloor} = 24.}}$

Manner 3: the subcarrier spacing used for calculating the time intervalis the minimum/maximum of the subcarrier spacing of BWP1 in which thePDCCH is located and the subcarrier spacing of BWP2 in which the PDSCHis located.

Manner 4: the time interval is the sum of the number of first timedomain symbols obtained from (slot, subcarrier spacing BWP1 of thePDCCH) in which the PDCCH is located and the number of second timedomain symbols obtained from (slot, subcarrier spacing BWP2 of thePDSCH) in which the PDSCH is located. At this point, as shown in FIG. 5,the time interval is N_(GAP)=N_(PDSCH,BWP2)+N_(PDCCH,BWP1)=2+11=13.

In the above-mentioned manners, N_(PDCCH,BWP1) denotes, between thePDCCH and the PDSCH/AP-CSI-RS, the number of symbols included in BWP1 inwhich the PDCCH is located with reference to the subcarrier spacing ofBWP1, and N_(PDSCH,BWP2) denotes, between the PDCCH and thePDSCH/AP-CSI-RS, the number of symbols included in BWP2 in which thePDSCH/AP-CSI-RS is located with reference to the subcarrier spacing ofBWP2.

In Manners 1 to 3 for obtaining the time interval, the predeterminedthreshold obtains capability information that is reported by thecommunication node and corresponds to the subcarrier interval accordingto the subcarrier interval used by the time interval. For example, whenthe subcarrier interval used by the time interval to calculate thenumber of time domain symbols is 60 kHz, the predetermined threshold is7 time domain symbols, and when the subcarrier interval used by the timeinterval to calculate the number of time domain symbols is 120 kHz, thepredetermined threshold is 28 time domain symbols.

When the above-mentioned subcarrier spacing of the BWP in which thePDCCH is located and the subcarrier spacing of the BWP in which thePDSCH is located do not belong to {60 kHz, 120 kHz}, the predeterminedthreshold is calculated by one of {60 kHz, 120 kHz}, and the timeinterval is obtained according to the subcarrier spacing used by thepredetermined threshold. For example, both the subcarrier spacing of theBWP in which the PDCCH is located and the subcarrier spacing of the BWPin which the PDSCH is located are 15 kHz, and the predeterminedthreshold uses the predetermined threshold corresponding to the 60 kHzin the communication node capability report, that is, the predeterminedthreshold is 7 time domain symbols. If the subcarrier spacing betweenthe PDCCH and the PDSCH is 10 time domain symbols of 15 kHz, the numberof time domain symbols which is converted into the subcarrier spacing of60 kHz is

$N_{GAP}^{\prime} = {\left\lfloor {\frac{2^{\mu_{N_{GAP}}^{\prime}}}{2^{\mu_{N_{GAP}}}}N_{GAP}} \right\rfloor = {\left\lfloor {\frac{2^{2}}{2^{0}}*10} \right\rfloor = 40.}}$

Embodiment Two

In this embodiment, when the PDCCH satisfies the sixth predeterminedcondition, the time interval between the PDCCH and the PDSCH/AP-CSI-RScannot be greater than or equal to the predetermined threshold, that is,at this point, the time interval between the PDCCH and thePDSCH/AP-CSI-RS can only be less than the predetermined threshold, orwhen the PDCCH satisfies the fourth predetermined condition, thecommunication node does not expect to receive the scheduling in whichthe time interval between the PDCCH and the PDSCH/AP-CSI-RS is greaterthan or equal to the predetermined threshold, or when the time intervalbetween the PDCCH and the PDSCH/AP-CSI-RS is greater than thepredetermined threshold, the PDCCH cannot satisfy the sixthpredetermined condition, where the PDCCH is a PDSCH for scheduling thePDSCH/AP-CSI-RS.

The sixth predetermined condition includes the condition that the PDCCHdoes not include quasi-co-location reference signal indicationinformation (such as TCI information) of the PDSCH/AP-CSI-RS and atleast one of the following conditions.

The fourth frequency domain resource in which a quasi-co-locationreference signal, which is associated with a type of quasi-co-locationparameters, of the PDCCH is located and the fifth frequency domainresource in which the PDSCH/AP-CSI-RS is located do not satisfy thefifth predetermined condition.

The sixth frequency domain resource in which a CORESET, in which thePDCCH is located, is located and the fifth frequency domain resource inwhich the PDSCH/AP-CSI-RS is located do not satisfy the fifthpredetermined condition.

None of transmission configuration indication information includes thequasi-co-location reference signal associated with the spatial receptionfiltering parameter.

None of transmission configuration indication information in onefrequency domain bandwidth or one frequency domain bandwidth groupincludes the quasi-co-location reference signal associated with thespatial reception filtering parameter is received.

The type of quasi-co-location parameters includes at least one of aDoppler shift, a Doppler spread, an average delay, a delay spread, or anaverage gain.

Alternatively, the type of quasi-co-location parameters does not includea Spatial Rx parameter.

When the time interval between the PDCCH and the PDSCH/AP-CSI-RS isgreater than the predetermined threshold and the PDCCH does not includequasi-co-location reference signal indication information (such as TCIinformation) of the PDSCH/AP-CSI-RS, at least one of the followingconditions is required to be satisfied.

The first frequency domain resource in which the quasi-co-locationreference signal, which is associated with a type of quasi-co-locationparameters, of the PDCCH is located and the second frequency domainresource in which the PDSCH/AP-CSI-RS is located satisfy the fifthpredetermined condition.

The first frequency domain resource in which the CORESET, in which thePDCCH is located, is located and the second frequency domain resource inwhich the PDSCH/AP-CSI-RS is located satisfy the fifth predeterminedcondition.

None of transmission configuration indication information includes thequasi-co-location reference signal associated with the spatial receptionfiltering parameter.

None of transmission configuration indication information in onefrequency domain bandwidth or one frequency domain bandwidth groupincludes the quasi-co-location reference signal associated with thespatial reception filtering parameter is received.

Two frequency domain resources satisfy the fifth predetermined conditionthat includes at least one of the following conditions.

A difference set of the two frequency domain resources is null, that is,the two frequency domain resources are the same frequency domainresource. For example, when the above-mentioned frequency domainresource is a CC/BWP, the CC1/BWP1 corresponding to one frequency domainresource and the CC2/BWP2 corresponding to the other frequency domainresource are the same BWP. For another example, when the above-mentionedfrequency domain resource is a frequency domain resource block set, afrequency domain resource block set corresponding to one frequencydomain resource is the same as a frequency domain resource block setcorresponding to the other frequency domain resource. For anotherexample, when the above-mentioned frequency domain resource is a spancorresponding to a frequency domain resource block set, the spancorresponding to the frequency domain resource block set correspondingto one frequency domain resource is the same as the span correspondingto the frequency domain resource block set corresponding to the otherfrequency domain resource.

A difference between a frequency domain span included in one of the twofrequency domain resources and a frequency domain span included in theother of the two frequency domain resources is less than a predeterminedvalue.

One of the two frequency domain resources belongs to the other of thetwo frequency domain resources.

An intersection of the two frequency domain resources is non-null.

Subcarrier spacings of the two frequency domain resources are the same.

Embodiment Three

In this embodiment, at least one of the following characteristics isincluded.

The fifth frequency domain resource in which at least one of the channelor the signal corresponding to the reference signal is located and theeighth frequency domain resource in which the quasi-co-locationreference signal, which is associated with a type of quasi-co-locationparameters, of the reference signal is located satisfy the fifthpredetermined condition.

The fifth frequency domain resource in which at least one of the channelor the signal corresponding to the reference signal is located and theninth frequency domain resource in which a second signal is locatedsatisfy the fifth predetermined condition, where the second signal andthe reference signal satisfy a quasi-co-location relationship withrespect to a type of quasi-co-location parameters.

When the frequency domain bandwidth in which at least one of the channelor the signal corresponding to the reference signal is located isdifferent from the frequency domain bandwidth in which thequasi-co-location reference signal, which is associated with the type ofquasi-co-location parameters, of the reference signal is located, thefifth frequency domain resource in which at least one of the channel orthe signal corresponding to the reference signal is located and theeighth frequency domain resource in which the quasi-co-locationreference signal, which is associated with the type of quasi-co-locationparameters, of the reference signal is located satisfy the fifthpredetermined condition, where the frequency domain bandwidth includesat least one of a CC or a BWP.

When the frequency domain bandwidth in which at least one of the channelor the signal corresponding to the reference signal is located isdifferent from the frequency domain bandwidth in which the second signalis located, the fifth frequency domain resource in which at least one ofthe channel or the signal corresponding to the reference signal islocated and the ninth frequency domain resource in which the secondsignal is located satisfy the fifth predetermined condition, where thesecond signal and the quasi-co-location reference signal of thereference parameter satisfy a quasi-co-location relationship withrespect to a type of quasi-co-location parameters.

The reference signal and the quasi-co-location reference signal, whichis associated with a type of quasi-co-location parameters, of thereference signal satisfy a quasi-co-location relationship with respectto a predetermined type of quasi-co-location parameters.

The second signal and the quasi-co-location reference signal, which isassociated with a type of quasi-co-location parameters, of the referencesignal satisfy a quasi-co-location relationship with respect to apredetermined type of quasi-co-location parameters.

The predetermined type of quasi-co-location parameters satisfies atleast one of the predetermined type of quasi-co-location parametersincludes at least one of a Doppler shift, a Doppler spread, an averagedelay, or a delay spread; or the predetermined type of quasi-co-locationparameters does not include a Spatial Rx parameter.

The quasi-co-location reference signal of the reference signal includesat least one of: a demodulation reference signal, a measurementreference signal, a phase tracking reference signal (PTRS), ameasurement reference signal for tracking (CSI-RS for Tracking, TRS), ora channel corresponding to the demodulation reference signal.

At least one of the quasi-co-location reference signal or the secondsignal includes at least one of: a measurement reference signal, a TRS,or a synchronization signal.

Two frequency domain resources satisfy the fifth predetermined conditionthat includes at least one of the following conditions.

A difference set of the two frequency domain resources is null, that is,the two frequency domain resources are the same frequency domainresource. For example, when the above-mentioned frequency domainresource is a CC/BWP, the CC1/BWP1 corresponding to one frequency domainresource and the CC2/BWP2 corresponding to the other frequency domainresource are the same BWP. For another example, when the above-mentionedfrequency domain resource is a frequency domain resource block set, afrequency domain resource block set corresponding to one frequencydomain resource is the same as a frequency domain resource block setcorresponding to the other frequency domain resource. For anotherexample, when the above-mentioned frequency domain resource is a spancorresponding to a frequency domain resource block set, the spancorresponding to the frequency domain resource block set correspondingto one frequency domain resource is the same as the span correspondingto the frequency domain resource block set corresponding to the otherfrequency domain resource.

A difference between a frequency domain span included in one of the twofrequency domain resources and a frequency domain span included in theother of the two frequency domain resources is less than a predeterminedvalue.

One of the two frequency domain resources belongs to the other of thetwo frequency domain resources.

An intersection of the two frequency domain resources is non-null.

Subcarrier spacings of the two frequency domain resources are the same.

In particular, for example, when the quasi-co-location reference signalof the reference signal is a TRS or when the second signal is a TRS, thenumber of PRBs occupied by the TRS is obtained in at least one of thefollowing manners.

When the period of the TRS is 2^(u)×10 slots, the number of PRBsoccupied by the TRS needs to satisfy: min (52, N).

When the period of the TRS is not 2^(u)×10 slots, the number of PRBsoccupied by the TRS is N.

In the above manners, N is the number of PRBs included in the BWP inwhich the reference signal is located or the number N_(RB) ^(BWP1) ofPRBs included in BWP1, where BWP1 includes the frequency domain resourcein which the reference signal is located, and the parameter u is asubcarrier spacing parameter of the CSI-RS, that is, the subcarrierspacing of the CSI-RS is 2^(u)×15 kHz.

When the quasi-co-location reference signal of the reference signal is aTRS or when the second signal is a TRS, the number of PRBs occupied bythe TRS needs to satisfy the following characteristics.

When the period of the TRS is not 2^(u)×10 slots, the number of PRBsoccupied by the TRS is not less than min(52, N).

When the period of the TRS is not 2^(u)×10 slots, the number of PRBsoccupied by the TRS is not less than N.

In the above characteristics, Nis the number of PRBs included in the BWPin which the target signal is located or the number N_(RB) ^(BWP1) ofPRBs included in BWP1, where BWP1 includes the frequency domain resourcein which the target signal is located, and the parameter u is asubcarrier spacing parameter of the CSI-RS, that is, the subcarrierspacing of the CSI-RS is 2^(u)×15 kHz.

Embodiment Four

In this embodiment, the terminal does not expect to receive thefollowing configuration indication: the time interval between the PDCCHand the PDSCH/AP-CSI-RS is less than the predetermined threshold, andthe frequency domain bandwidth index in which the PDCCH is located isdifferent from the frequency domain bandwidth index in which thePDSCH/AP-CSI-RS is located. The above-mentioned frequency domainbandwidth is at least one of a CC or a BWP, and the PDCCH is a PDCCH forscheduling the PDSCH/AP-CSI-RS.

That is, when the frequency domain bandwidth index in which the PDCCH islocated is different from the frequency domain bandwidth index in whichthe PDSCH is located, the time interval between the PDCCH and thePDSCH/AP-CSI-RS is greater than or equal to the predetermined threshold,that is, when the BWP/CC is switched, the time interval between thePDCCH and the PDSCH/AP-CSI-RS cannot be less than the predeterminedthreshold.

Embodiment Five

In this embodiment, when none of the TCI configuration indicationreceived by the terminal includes the quasi-co-location reference signalassociated with the type-D quasi-co-location parameter and theindication of the PDCCH includes the TCI indication information, the TCIinformation of the PDSCH/AP-CSI-RS is obtained according to theinformation indicated by the DCI, regardless of the relationship betweenthe time interval between the PDCCH and the PDSCH and the predeterminedthreshold. For example, whether the time interval between the PDCCH andthe PDSCH is less than or equal to the predetermined threshold or thetime interval between the PDCCH and the PDSCH is greater than or equalto the predetermined threshold, the TCI information of thePDSCH/AP-CSI-RS is obtained according to the information indicated bythe DCI.

When none of the TCI configuration indication received by the terminalincludes the quasi-co-location reference signal associated with thetype-D quasi-co-location parameter and the indication of the PDCCH doesnot include the TCI indication information, the TCI information of thePDSCH/AP-CSI-RS is obtained in one of the following manners, regardlessof the relationship between the time interval between the PDCCH and thePDSCH and the predetermined threshold.

Manner 1: the TCI information of the PDSCH/AP-CSI-RS is obtainedaccording to the quasi-co-location reference signal of the PDCCH.

Manner 2: the TCI information of the PDSCH/AP-CSI-RS is obtainedaccording to the SSB selected by the terminal at the initial access.

Whether to use Manner 1 or Manner 2 may be explicitly indicated by thebase station.

Alternatively, whether to use Manner 1 or Manner 2 is determinedaccording to frequency domain span information of the frequency domainresource in which the PDSCH/AP-CSI-RS is located. For example, if thefrequency domain span is small, Manner 2 is used; while if the frequencydomain span is large, Manner 1 is used.

Alternatively, one of Manner 1 or Manner 2 is used according to theconvention.

Alternatively, whether to use Manner 1 or Manner 2 is determinedaccording to the period of the SSB. When the period of the SSB is lessthan a predetermined value, the TCI information is obtained according toManner 2, otherwise the TCI information is obtained according to Manner1.

Alternatively, whether to use Manner 1 or Manner 2 is determineddepending on whether the RRC configures the TCI information for thePDCCH/PDSCH.

The type-D quasi-co-location parameter is a Spatial Rx parameter, thePDCCH is a quasi-co-location reference signal for scheduling thePDCCH/AP-CSI-RS, and the TCI information of the PDSCH/AP-CSI-RS isquasi-co-location reference signal information of the PDSCH/AP-CSI-RS.

Embodiment Six

In this embodiment, when none of the TCI configuration indicationreceived by the terminal for one frequency domain bandwidth/frequencydomain bandwidth group includes the quasi-co-location reference signalassociated with the type-D quasi-co-location parameter and theindication of the PDCCH includes the TCI indication information, the TCIinformation of the PDSCH/AP-CSI-RS is obtained according to theinformation indicated by the DCI, regardless of the relationship betweenthe time interval between the PDCCH and the PDSCH and the predeterminedthreshold.

When none of the TCI configuration indication received by the terminalfor one frequency domain bandwidth/frequency domain bandwidth groupincludes the quasi-co-location reference signal associated with thetype-D quasi-co-location parameter and the indication of the PDCCH doesnot include the TCI indication information, the TCI information of thePDSCH/AP-CSI-RS is obtained according to the quasi-co-location referencesignal of the PDCCH, regardless of the relationship between the timeinterval between the PDCCH and the PDSCH and the predeterminedthreshold.

One frequency domain bandwidth includes at least one of a CC or a BWP.

In an embodiment, one frequency domain bandwidth group belongs to oneIntra-Band.

Embodiment Seven

In this embodiment, the time interval length corresponding to capabilityinformation 1 reported by the terminal is greater than the time intervallength corresponding to capability information 2 reported by theterminal. Capability information 1 indicates a minimum time intervalbetween the PDCCH and the PDSCH/AP-CSI-RS when the BWP is switched, andcapability information 2 indicates a minimum time interval required forthe terminal to use the TCI information indicated by the PDCCH for thereception of the PDSCH/AP-CSI-RS.

The time interval corresponding to the capability information iscalculated in seconds instead of the number of time domain symbols.

Embodiment Eight

In this embodiment, when the sixth predetermined condition is satisfied,the quasi-co-location reference signal of the PDSCH/AP-CSI-RS isobtained according to the quasi-co-location reference signal of thePDCCH.

The sixth predetermined condition includes at least one of the followingconditions.

The PDCCH does not include quasi-co-location reference signal indicationinformation.

The time interval between the PDCCH and the PDSCH/AP-CSI-RS is greaterthan or equal to the predetermined threshold.

None of the TCI configuration indication received by the terminalincludes the quasi-co-location reference signal associated with thetype-D quasi-co-location parameter.

None of the TCI configuration indication for one frequency domainbandwidth/frequency domain bandwidth group includes thequasi-co-location reference signal associated with the type-Dquasi-co-location parameter.

Embodiment Nine

In this embodiment, one CSI-RS resource identifier (ID) in one CC may beconfigured in more than one resource setting, one BWP-ID is configuredin each resource setting, and thus it is necessary to predetermine thatthe BWPs corresponding to BWP-IDs in multiple resource settings in whichone CSI-RS resource ID is located satisfy a predetermined condition. Forexample, the BWP-IDs in multiple resource settings in which one CSI-RSresource ID is located are the same. One resource setting includes atleast one resource set, and each resource set includes at least oneresource.

The above-mentioned predetermination is only suitable for the CSI-RS forTracking, that is, the TRS reference signal.

Embodiment Ten

In this embodiment, one CSI-RS resource ID of one CC may be configuredin more than one resource setting, and one BWP-ID is configured in eachresource setting.

In the configuration indication of the TCI, a quasi-co-locationreference signals (CSI-RS resource ID, CC index information, BWP indexinformation) are configured. It is agreed that the BWP index information(that is, BWP-ID information) corresponding to the CSI-RS resource IDconfigured in the TCI is the same as the BWP-ID configured in one of theat least one resource setting in which the CSI-RS resource ID islocated.

The above-mentioned predetermination is only suitable for the CSI-RS forTracking, that is, the TRS reference signal.

Embodiment Eleven

In this embodiment, in the RRC control signaling for configuring thequasi-co-location reference signal set for CORESET0/search space 0, orin the MAC-CE control signaling for activating the quasi-co-locationreference signal set for CORESET0, more than one piece of SSB indexinformation is configured for CORESET0/search space, one piece of SSBindex information corresponds to one period monitoring occasion ofCORESET0/search space 0, and the terminal obtains more than one periodmonitoring occasion of CORESET0/search space according to the more thanone piece of SSB index information.

The terminal monitors CORESET0/search space 0 in more than one periodmonitoring occasion.

When the quasi-co-location reference signal of the PDSCH/AP-CSI-RS isobtained according to the quasi-co-location reference signal ofCORESET0/search space 0, the base station needs to notify of or agreewith the terminal on which of more than one SSB index corresponding toCORESET0/search space 0 is obtained.

One SSB index corresponds to one synchronization signal/physicalbroadcast channel block (SS/PBCHB).

Embodiment Twelve

It is specified in the NR that the terminal needs to reportmaxNumberActiveTCI-PerBWP for indicating the maximum number of TCIsactivated for the terminal in one BWP of one CC for control and data,where the maxNumberActiveTCI-PerBWP belongs to {1, 2, 4, 8}. WhenmaxNumberActiveTCI-PerBWP reported by the terminal is 1, the maximumnumber of TCIs activated for control and data in one BWP of one CC is 1.The number of TCIs configured by the base station for the terminal inone BWP of one CC and activated for control and data of the terminalcannot exceed the capability reported by the terminal. The number ofTCIs configured by the base station for the terminal in one BWP of oneCC and activated for control and data of the terminal does not includeat least one of the following TCIs, or when maxNumberActiveTCI-PerBWPreported by the terminal is 1, the number of TCIs configured by the basestation for the terminal in one BWP of one CC and activated for controland data of the terminal does not include at least one of the followingTCIs.

TCI1: a TCI state of COERSET0, for example, one TCI state configured bythe base station for CORESET0 through signaling information.

TCI2: the quasi-co-location reference signal of COERSET0, for example,when the terminal selects an SSB in random access, or when the basestation configures one SSB index, instead of one TCI state index, forCORESET0 through signaling, but not when the base station configures oneTCI state for CORESET0 through signaling, the quasi-co-locationreference signal of CORESET0 is not counted in the number of activatedTCIs

TCI3: the quasi-co-location reference signal of CORESET-Beam Failure andRecovery (BFR), which is a reference signal reported by the terminal ina beam failure request, and which is not counted in the number ofactivated TCIs.

When the maxNumberActiveTCI-PerBWP reported by the terminal is 1, sincethe BFR occurs randomly, there can be no activated TCIs other than theCORESET-BFR, or at least one of the following schemes may be adopted.

Scheme 1: after beam failure is monitored and before a reconfigurationof the base station for the PDCCH is received, the number of activatedTCIs is 2, while the number of activated TCIs in other time periods is1.

Scheme 2: the number of activated TCIs is determined according tomax(maxNumberActiveTCI-PerBWP, size(q0)+1), where size(q0) is the numberof reference signals included in a beam failure monitoring referencesignal set q0.

Scheme 3: after a BFR parameter is configured for the terminal or inresponse to a BFR function being supported in the capability informationreported by the terminal, maxNumberActiveTCI-PerBWP information reportedby the terminal cannot be 1.

Scheme 4: from a predetermined time after the beam failure is monitoredto a moment when the reconfiguration of the base station for the PDCCHis received, quasi-co-location reference signals of all CORESETs/allproprietary CORESETs are updated to new reference signals reported bythe terminal.

With reference to FIG. 6, another embodiment of the present disclosureprovides an apparatus for determining a quasi-co-location referencesignal. The apparatus includes a second quasi-co-location referencesignal determination module 601.

The second quasi-co-location reference signal determination module 601is configured to, in response to at least one of a channel or a signalcorresponding to a reference signal satisfying the third predeterminedcondition, determine a quasi-co-location reference signal of thereference parameter according to a quasi-co-location reference signal ofa control channel element satisfying a fifth predeterminedcharacteristic in a second time unit, where the second time unit islatest to at least one of the channel or the signal corresponding to thereference signal and is in a set of first time units, and each of thefirst time units includes a control channel element satisfying a fourthpredetermined characteristic.

In another embodiment of the present disclosure, the apparatus furtherincludes a transmission module 602.

The transmission module 602 is configured to transmit the referencesignal according to the quasi-co-location reference signal of thereference parameter.

In another embodiment of the present disclosure, the fourthpredetermined characteristic includes at least one of the followingcharacteristics.

An intersection of the control channel element and a control channelelement whose index is 0 is null, that is, the control channel elementis not CORESET0.

In response to the first time unit satisfying a fourth predeterminedcondition, the control channel element includes the control channelelement whose index is 0.

The control channel element and at least one of the channel or thesignal corresponding to the reference signal are in the same frequencydomain bandwidth.

The control channel element and a BWP in an active state in the firsttime unit satisfy a sixth predetermined characteristic.

A first frequency domain resource in which the control channel elementis located and a second frequency domain resource corresponding to theBWP in the active state in the first time unit satisfy a fifthpredetermined condition.

A third frequency domain resource and the second frequency domainresource corresponding to the BWP in the active state in the first timeunit satisfy the fifth predetermined condition, where aquasi-co-location reference signal of the control channel element islocated in the third frequency domain resource and is associated with atype of quasi-co-location parameters.

In another embodiment of the present disclosure, that the first timeunit satisfies the fourth predetermined condition includes at least oneof the following conditions.

The BWP in the active state in the first time unit is a predeterminedBWP, where the predetermined BWP includes one of a BWP whose index is 0,a BWP whose index is 1, or a transmission configuration indication listcorresponding to a control channel element whose index is 0 belongs to atransmission configuration indication list corresponding to the channelelement included in the predetermined BWP.

The BWP in the active state in the first time unit includes a frequencydomain resource corresponding to an initial BWP.

The BWP in the active state in the first time unit and the controlchannel element whose index is 0 satisfy the sixth predeterminedcharacteristic.

In another embodiment of the present disclosure, that the controlchannel element and the BWP in the active state in the first time unitsatisfy the sixth predetermined characteristic includes at least one ofthe following characteristics.

Configuration indication of the BWP includes configuration indication ofthe control channel element.

The configuration indication of the BWP includes configurationindication of at least one search space set, and the at least one searchspace set is associated with the control channel element. That is tosay, frequency domain resources of the search space are frequency domainresources occupied by the control channel element, and candidate controlchannels in the search space set are distributed among the frequencydomain resources determined by the control channel element.

The BWP includes a frequency domain resource in which the controlchannel element is located.

The BWP includes a frequency domain resource corresponding to a firstBWP, where configuration indication of the first BWP includes theconfiguration indication of the control channel element.

An intersection between a time resource of the BWP in the active stateand a monitoring time resource of the control channel element isnon-null, where a monitoring time of the control channel element is aunion set of monitoring times of at least one search space setassociated with the control channel element.

In another embodiment of the present disclosure, the control channelelement satisfying the fifth predetermined characteristic includes acontrol channel element, where the control channel element has thelowest control channel element index in a set composed of controlchannel elements, the control channel elements satisfy the fourthpredetermined characteristic in the second time unit, and the secondtime unit is closest to at least one of the channel or the signalcorresponding to the reference signal.

In another embodiment of the present disclosure, that at least one ofthe channel or the signal corresponding to the reference signalsatisfies the third predetermined condition includes at least one of thefollowing conditions.

A time interval between a control channel and at least one of thechannel or the signal corresponding to the reference signal is less thana predetermined threshold. The control channel is used for scheduling atleast one of the channel or the signal corresponding to the referencesignal

A fourth frequency domain resource and a fifth frequency domain resourcein which at least one of the channel or the signal corresponding to thereference signal is located do not satisfy the fifth predeterminedcondition, and the control channel for scheduling at least one of thechannel or the signal corresponding to the reference signal does notinclude indication information of transmission configuration indication.A quasi-co-location reference signal of the control channel is locatedin the fourth frequency domain resource and is associated with a type ofquasi-co-location parameters, and the control channel is used forscheduling at least one of the channel or the signal corresponding tothe reference signal.

A sixth frequency domain resource and the fifth frequency domainresource in which at least one of the channel or the signalcorresponding to the reference signal is located do not satisfy thefifth predetermined condition, and the control channel for scheduling atleast one of the channel or the signal corresponding to the referencesignal does not include the indication information of the transmissionconfiguration indication. The control channel is located in the sixthfrequency domain resource and is used for scheduling at least one of thechannel or the signal corresponding to the reference signal.

A twelfth frequency domain resource and the fifth frequency domainresource in which at least one of the channel or the signalcorresponding to the reference signal is located satisfy the fifthpredetermined condition. A quasi-co-location reference signal of thecontrol channel element is located in the twelfth frequency domainresource and is associated with a type of quasi-co-location parameters,and the control channel element satisfies the fifth predeterminedcharacteristic.

A thirteenth frequency domain resource in which a second signal islocated and the fifth frequency domain resource in which at least one ofthe channel or the signal corresponding to the reference signal islocated satisfy the fifth predetermined condition, where the secondsignal and a quasi-co-location reference signal of the control channelsatisfy a quasi-co-location relationship with respect to a type ofquasi-co-location parameters. The control channel satisfies the fifthpredetermined characteristic or is used for scheduling the referencesignal.

A thirteen frequency domain resource in which the control channelelement satisfying the fifth predetermined characteristic is located andthe fifth frequency domain resource in which at least one of the channelor the signal corresponding to the reference signal is located satisfythe fifth predetermined condition.

A seventh frequency domain resource and the fifth frequency domainresource in which at least one of the channel or the signalcorresponding to the reference signal is located do not satisfy thefifth predetermined condition. A quasi-co-location reference signal islocated in the seventh frequency domain resource and is associated witha type of quasi-co-location parameters in transmission configurationindication, and the transmission configuration indication is used forindicating the reference signal and is in the control channel forscheduling the reference signal.

A quasi-co-location reference signal is received. The quasi-co-locationreference signal is associated with a spatial reception filteringparameter which is included in at least one piece of transmissionconfiguration indication information.

In another embodiment of the present disclosure, the predeterminedthreshold is obtained according to at least one of reported capabilityinformation; the subcarrier spacing corresponding to at least one of thechannel or the signal corresponding to the reference signal; asubcarrier spacing corresponding to the reported capability information;a subcarrier spacing corresponding to the control channel for schedulingat least one of the channel or the signal corresponding to the referencesignal; a subcarrier spacing corresponding to a control channel elementsatisfying the fifth predetermined characteristic; or a subcarrierspacing used for calculating the time interval.

In another embodiment of the present disclosure, the time interval isobtained according to at least one of a subcarrier spacing correspondingto the control channel for scheduling at least one of the channel or thesignal corresponding to the reference signal; a subcarrier spacingcorresponding to at least one of the channel or the signal correspondingto the reference signal; a subcarrier spacing corresponding to thepredetermined threshold; or a subcarrier spacing used for calculatingthe time interval.

In another embodiment of the present disclosure, at least one of thechannel or the signal corresponding to the reference signal satisfiesone of the following characteristics.

The fifth frequency domain resource in which at least one of the channelor the signal corresponding to the reference signal is located and theeighth frequency domain resource satisfy the fifth predeterminedcondition. The quasi-co-location reference signal is located in theeighth frequency domain resource and is associated with a type ofquasi-co-location parameters, of the reference signal.

The fifth frequency domain resource in which at least one of the channelor the signal corresponding to the reference signal is located and theninth frequency domain resource in which a second signal is locatedsatisfy the fifth predetermined condition, where the second signal andthe reference signal satisfy a quasi-co-location relationship withrespect to a type of quasi-co-location parameters.

In response to a frequency domain bandwidth in which at least one of thechannel or the signal corresponding to the reference signal is locatedbeing different from a frequency domain bandwidth in which thequasi-co-location reference signal of the reference signal is located,the fifth frequency domain resource in which at least one of the channelor the signal corresponding to the reference signal is located and theeighth frequency domain resource in which the quasi-co-locationreference signal of the reference signal is located satisfy the fifthpredetermined condition, where the quasi-co-location reference signal isassociated with the type of quasi-co-location parameters.

In response to the frequency domain bandwidth in which at least one ofthe channel or the signal corresponding to the reference signal islocated being different from a frequency domain bandwidth in which thesecond signal is located, the fifth frequency domain resource in whichat least one of the channel or the signal corresponding to the referencesignal is located and a ninth frequency domain resource in which thesecond signal is located satisfy the fifth predetermined condition,where the second signal and the quasi-co-location reference signal ofthe reference parameter satisfy a quasi-co-location relationship withrespect to a type of quasi-co-location parameters.

In response to the frequency domain bandwidth in which at least one ofthe channel or the signal corresponding to the reference signal islocated being different from the frequency domain bandwidth in which thequasi-co-location reference signal of the reference signal is locatedand the fifth frequency domain resource in which at least one of thechannel or the signal corresponding to the reference signal is locatedand the eighth frequency domain resource in which the quasi-co-locationreference signal of the reference signal is located not satisfying thefifth predetermined condition, the third predetermined condition issatisfied. The quasi-co-location reference signal is associated with thetype of quasi-co-location parameters,

In response to the frequency domain bandwidth in which the at least oneof the channel or the signal corresponding to the reference signal islocated being different from the frequency domain bandwidth in which thesecond signal is located and the fifth frequency domain resource inwhich the at least one of the channel or the signal corresponding to thereference signal is located and the tenth frequency domain resource inwhich the second signal is located satisfying the fifth predeterminedcondition, the third predetermined condition is satisfied, where thesecond signal and the quasi-co-location reference signal of thereference parameter satisfy a quasi-co-location relationship withrespect to a type of quasi-co-location parameters.

In another embodiment of the present disclosure, in response to at leastone of the quasi-co-location reference signal of the reference parameteror the second signal being a tracking reference signal, a frequencydomain span of the tracking reference signal is greater than or equal toa frequency domain span Y, where the frequency domain span Y is obtainedin one of the following manners.

In response to a period of the tracking reference signal belonging to afirst period set, Y is min (52 PRBs, a frequency domain spancorresponding to at least one of the channel or the signal correspondingto the reference signal).

In response to the period of the tracking reference signal not belongingto the first period set, Y is the frequency domain span corresponding tothe channel and/or the signal corresponding to the reference signal.

In the above manners, the frequency domain span corresponding to the atleast one of the channel or the signal corresponding to the referencesignal includes at least one of a set of frequency domain resourceblocks comprised in a bandwidth part in which at least one of thechannel or the signal corresponding to the reference signal is located;or a set of frequency domain resource blocks between the highest indexedfrequency domain resource block and the highest indexed resource blockin a set of frequency domain resource blocks occupied by at least one ofthe channel or the signal corresponding to the reference signal.

In another embodiment of the present disclosure, the first period setincludes the following period: 10 milliseconds.

In another embodiment of the present disclosure, that two frequencydomain resources satisfy the fifth predetermined condition includes atleast one of the following conditions.

A difference set of the two frequency domain resources is null, that is,the two frequency domain resources are the same frequency domainresource. For example, when the above-mentioned frequency domainresource is a CC/BWP, the CC1/BWP1 corresponding to one frequency domainresource and the CC2/BWP2 corresponding to the other frequency domainresource are the same BWP. For another example, when the above-mentionedfrequency domain resource is a frequency domain resource block set, afrequency domain resource block set corresponding to one frequencydomain resource is the same as a frequency domain resource block setcorresponding to the other frequency domain resource. For anotherexample, when the above-mentioned frequency domain resource is a spancorresponding to a frequency domain resource block set, the spancorresponding to the frequency domain resource block set correspondingto one frequency domain resource is the same as the span correspondingto the frequency domain resource block set corresponding to the otherfrequency domain resource.

A difference between a frequency domain span included in one of the twofrequency domain resources and a frequency domain span included in theother of the two frequency domain resources is less than a predeterminedvalue.

One of the two frequency domain resources belongs to the other of thetwo frequency domain resources.

An intersection of the two frequency domain resources is non-null.

Subcarrier spacings of the two frequency domain resources are the same.

In another embodiment of the present disclosure, the type ofquasi-co-location parameters satisfies at least one of the followingcharacteristics.

The type of quasi-co-location parameters includes at least one of aDoppler shift, a Doppler spread, an average delay, a delay spread, or anaverage gain.

The type of quasi-co-location parameters does not include a spatialreception filtering parameter.

In another embodiment of the present disclosure, the frequency domainresource in which at least one of the channel, the signal, or thecontrol channel element is located includes at least one of a CC inwhich at least one of the channel, the signal, or the control channelelement is located; a BWP of the CC in which at least one of thechannel, the signal, or the control channel element is located; a set offrequency domain resource blocks occupied by at least one of thechannel, the signal, or the control channel element is located; or afrequency domain span corresponding to the set of frequency domainresource blocks occupied by at least one of the channel, the signal, orthe control channel element is located.

In another embodiment of the present disclosure, the method furtherincludes the step described below.

In response to no first time unit including the control channel elementsatisfying the fourth predetermined characteristic, schedulinginformation satisfying the third predetermined condition is not wantedto be received.

The implementation process of the apparatus for determining aquasi-co-location reference signal of the embodiments of the presentdisclosure is the same as the implementation process of the method fordetermining a quasi-co-location reference signal in the above-mentionedembodiments, and will not be repeated herein.

Another embodiment of the present disclosure provides a device fordetermining a quasi-co-location reference signal. The device includes aprocessor and a computer-readable storage medium, where thecomputer-readable storage medium is configured to store instructionswhich, when executed by the processor, implement any of the methods fordetermining a quasi-co-location reference signal described above.

Another embodiment of the present disclosure provides acomputer-readable storage medium. The computer-readable storage mediumstores a computer program which, when executed by a processor,implements steps of any of the methods for determining aquasi-co-location reference signal described above.

Another embodiment of the present disclosure provides a method fortransmitting a reference signal. The method includes the steps describedbelow.

Reference signal information is determined according to at least one ofsignaling information or a first predetermined rule, where a port of thereference signal information port is required to satisfy a secondpredetermined rule.

At least one of a reference signal, a channel corresponding to thereference signal, or a signal corresponding to the reference signal istransmitted according to the reference signal information.

In another embodiment of the present disclosure, the secondpredetermined rule includes at least one of the following rules.

The fifth frequency domain resource in which at least one of the channelor the signal corresponding to the reference signal is located and theeighth frequency domain resource in which the quasi-co-locationreference signal of the reference signal is located satisfy the fifthpredetermined condition. The quasi-co-location reference signal isassociated with a type of quasi-co-location parameters.

The fifth frequency domain resource in which at least one of the channelor the signal corresponding to the reference signal is located and theninth frequency domain resource in which the second signal is locatedsatisfy the fifth predetermined condition, where the second signal andthe reference signal satisfy a quasi-co-location relationship withrespect to a type of quasi-co-location parameters.

In response to a frequency domain bandwidth in which at least one of thechannel or the signal corresponding to the reference signal is locatedbeing different from a frequency domain bandwidth in which thequasi-co-location reference signal of the reference signal is located,the fifth frequency domain resource in which at least one of the channelor the signal corresponding to the reference signal is located and theeighth frequency domain resource in which the quasi-co-locationreference signal of the reference signal is located satisfy the fifthpredetermined condition. The quasi-co-location reference signal isassociated with the type of quasi-co-location parameters.

In response to the frequency domain bandwidth in which at least one ofthe channel or the signal corresponding to the reference signal islocated being different from the frequency domain bandwidth in which thesecond signal is located, the fifth frequency domain resource in whichat least one of the channel or the signal corresponding to the referencesignal is located and the ninth frequency domain resource in which thesecond signal is located satisfy the fifth predetermined condition,where the second signal and the quasi-co-location reference signal ofthe reference parameter satisfy a quasi-co-location relationship withrespect to a type of quasi-co-location parameters.

In another embodiment of the present disclosure, the reference signalincludes at least one of a demodulation reference signal, a measurementreference signal, a PTRS, a CSI-RS for Tracking (TRS), or a channelcorresponding to the demodulation reference signal.

At least one of the quasi-co-location reference signal or the secondsignal includes at least one of: a measurement reference signal, ameasurement reference signal for tracking, or a synchronization signal.

In another embodiment of the present disclosure, in response to at leastone of the quasi-co-location reference signal of the reference parameteror the second signal being a tracking reference signal, a frequencydomain span of the tracking reference signal is greater than or equal toa frequency domain span Y, where the frequency domain span Y is obtainedin at least one of the following manners.

In response to a period of the tracking reference signal belonging to afirst period set, Y is min (52 PRBs, a frequency domain spancorresponding to at least one of the channel or the signal correspondingto the reference signal).

In response to the period of the tracking reference signal not belongingto the first period set, Y is the frequency domain span corresponding toat least one of the channel or the signal corresponding to the referencesignal.

In the above manners, the frequency domain span corresponding to atleast one of the channel or the signal corresponding to the referencesignal includes one of a set of frequency domain resource blockscomprised in a bandwidth part in which at least one of the channel orthe signal corresponding to the reference signal is located; or a set offrequency domain resource blocks between the highest indexed frequencydomain resource block and the highest indexed resource block in a set offrequency domain resource blocks occupied by at least one of the channelor the signal corresponding to the reference signal.

In another embodiment of the present disclosure, the first period setincludes the following period: 10 milliseconds.

In another embodiment of the present disclosure, the secondpredetermined rule includes at least one of the following rules.

In response to none of transmission configuration indication informationincluding a quasi-co-location reference signal associated with a spatialreception filtering parameter and control signaling carryingquasi-co-location reference signal information of the reference signal,the quasi-co-location reference signal of the reference signal isobtained according to the quasi-co-location reference signal informationcarrying the reference signal.

In response to none of transmission configuration indication informationincluding the quasi-co-location reference signal associated with thespatial reception filtering parameter and the control signaling notcarrying the quasi-co-location reference signal information of thereference signal, the quasi-co-location reference signal of thereference signal is obtained according to a quasi-co-location referencesignal of a control channel for scheduling the reference signal.

In response to none of transmission configuration indication informationincluding the quasi-co-location reference signal associated with thespatial reception filtering parameter and the control signaling notcarrying the quasi-co-location reference signal information of thereference signal, the quasi-co-location reference signal of thereference signal is obtained according to a reference signal selected bya communication node in random access.

In response to none of transmission configuration indication informationincluding the quasi-co-location reference signal associated with thespatial reception filtering parameter in a predetermined frequencydomain bandwidth group and the control signaling carrying thequasi-co-location reference signal information of the reference signal,the quasi-co-location reference signal of the reference signal isobtained according to the quasi-co-location reference signal informationcarrying the reference signal.

In response to none of transmission configuration indication informationincluding the quasi-co-location reference signal associated with thespatial reception filtering parameter in the predetermined frequencydomain bandwidth group and the control signaling not carrying thequasi-co-location reference signal information of the reference signal,the quasi-co-location reference signal of the reference signal isobtained according to the quasi-co-location reference signal forscheduling the control channel of the reference signal.

In response to none of transmission configuration indication informationincluding the quasi-co-location reference signal associated with thespatial reception filtering parameter in the predetermined frequencydomain bandwidth group and the control signaling not carrying thequasi-co-location reference signal information of the reference signal,the quasi-co-location reference signal of the reference signal isobtained according to the reference signal selected by the communicationnode in random access.

In the above rules, the control signaling is included in a physicallayer control channel.

In another embodiment of the present disclosure, the step in which thereference signal information is determined according to at least one ofsignaling information or the first predetermined rule, where a port ofthe reference signal information is required to satisfy the secondpredetermined rule, includes that, in response to the control signalingnot including quasi-co-location reference signal indication information,the first predetermined rule includes at least one of the followingrules.

In response to the fifth frequency domain resource in which at least oneof the channel or the signal corresponding to the reference signal islocated and the ninth frequency domain resource in which thequasi-co-location reference signal, which is associated with a type ofquasi-co-location parameters, of the control channel is locatedsatisfying the fifth predetermined condition, the quasi-co-locationreference signal of the reference signal is obtained according to thequasi-co-location reference signal of the control channel.

In response to the fifth frequency domain resource in which at least oneof the channel or the signal corresponding to the reference signal islocated and the eleventh frequency domain resource in which the controlchannel is located satisfying the fifth predetermined condition, thequasi-co-location reference signal of the reference signal is obtainedaccording to the quasi-co-location reference signal of the controlchannel.

In response to the fifth frequency domain resource in which at least oneof the channel or the signal corresponding to the reference signal islocated and the ninth frequency domain resource in which thequasi-co-location reference signal, which is associated with a type ofquasi-co-location parameters, of the control channel is located notsatisfying the fifth predetermined condition, the time interval betweenthe control channel and at least one of the channel or the signalcorresponding to the reference signal is less than the predeterminedthreshold.

In response to the fifth frequency domain resource in which at least oneof the channel or the signal corresponding to the reference signal islocated and the eleventh frequency domain resource in which the controlchannel is located not satisfying the fifth predetermined condition, thetime interval between the control channel and at least one of thechannel or the signal corresponding to the reference signal is less thanthe predetermined threshold.

In the above rules, the control channel is at least one of the controlchannel for scheduling the reference signal or the control signalingwhich is transmitted in the control channel.

In another embodiment of the present disclosure, two frequency domainresources satisfy the fifth predetermined condition that includes atleast one of the following conditions.

A difference set of the two frequency domain resources is null.

A difference between a frequency domain span included in one of the twofrequency domain resources and a frequency domain span included in theother of the two frequency domain resources is less than a predeterminedvalue.

One of the two frequency domain resources belongs to the other of thetwo frequency domain resources.

An intersection of the two frequency domain resources is non-null.

Subcarrier spacings of the two frequency domain resources are the same.

In another embodiment of the present disclosure, the type ofquasi-co-location parameters satisfies at least one of the followingcharacteristics.

The type of quasi-co-location parameters includes at least one of aDoppler shift, a Doppler spread, an average delay, a delay spread, or anaverage gain.

The type of quasi-co-location parameters does not include a spatialreception filtering parameter.

In another embodiment of the present disclosure, the frequency domainresource in which at least one of the channel, the signal, or thecontrol channel element is located includes at least one of a componentcarrier in which at least one of the channel or the signal is located; abandwidth part of the component carrier in which at least one of thechannel or the signal is located; a set of frequency domain resourceblocks occupied by at least one of the channel or the signal; or afrequency domain span corresponding to the set of frequency domainresource blocks occupied by at least one of the channel or the signal.

In another embodiment of the present disclosure, that the port of thereference signal information port is required to satisfy the secondpredetermined rule includes the following rule.

The control signaling includes transmission configuration indicationinformation which includes a reference signal index and BWP indexinformation, where the BWP index information belongs to a BWP indexconfigured in one resource setting in which the reference signal indexis located.

In another embodiment of the present disclosure, that the port of thereference signal information is required to satisfy the secondpredetermined rule includes at least one of the following rules.

The control signaling includes configuration indication of more than oneresource setting, where in response to the more than one resourcesetting including the same CSI-RS ID, BWP indexes configured in the morethan one resource setting are the same, where the more than one resourcesetting belongs to one CC.

The maximum number of pieces of configuration indication informationthat is configured by the base station for one terminal in one BWP ofone CC and activated for at least one of a data channel or a controlchannel does not exceed the maximum number of pieces of configurationindication information that is reported by the terminal, supported inone BWP of one CC and activated for at least one of the data channel orthe control channel.

The maximum number of pieces of configuration indication informationthat is configured by the base station for one terminal in one BWP ofone CC and activated for at least one of the data channel or the controlchannel is determined according to max(maxNumberActiveTCI-PerBWP,size(q0)+1), where size(q0) is the number of reference signals includedin the beam failure monitoring reference signal set q0, andmaxNumberActiveTCI-PerBWP is the maximum number of pieces ofconfiguration indication information that is reported by the terminal,supported in one BWP of one CC and activated for at least one of thedata channel or the control channel.

In another embodiment of the present disclosure, when the number ofpieces of configuration indication information that is configured by thebase station for one terminal in one BWP of one CC and activated for atleast one of the data channel or the control channel is calculated, thenumber does not include at least one of a TCI state of COERSET0; aquasi-co-location reference signal of COERSET0; or a quasi-co-locationreference signal of the CORESET-BFR.

In another embodiment of the present disclosure, in response to themaximum number of pieces of configuration indication information that isreported by the terminal, supported in one BWP of one CC and activatedfor at least one of the data channel or the control channel being 1, atleast one of the following schemes is adopted.

Scheme 1: after beam failure is monitored and before a reconfigurationof the base station for the PDCCH is received, the maximum number ofpieces of the activated configuration indication information is 2, whilethe maximum number of pieces of the activated configuration indicationinformation in other time periods is 1.

Scheme 2: the maximum number of pieces of the activated configurationindication information is determined according tomax(maxNumberActiveTCI-PerBWP, size(q0)+1), where size(q0) is the numberof reference signals included in the beam failure monitoring referencesignal set q0.

Scheme 3: after a BFR parameter is configured for the terminal or inresponse to a BFR function being supported in the capability informationreported by the terminal, maxNumberActiveTCI-PerBWP information reportedby the terminal cannot be 1.

Scheme 4: from a predetermined time after the beam failure is monitoredto a moment when the reconfiguration of the base station for the PDCCHis received, quasi-co-location reference signals of all CORESETs/allproprietary CORESETs are updated to new reference signals reported bythe terminal.

In another embodiment of the present disclosure, in the step in whichthe reference signal information is determined according to at least oneof signaling information or the first predetermined rule, where thereference signal information port is required to satisfy the secondpredetermined rule, the first predetermined rule includes at least oneof the following rules.

In response to the control channel for scheduling the reference signaland at least one of the channel or the signal corresponding to thereference signal being in different frequency domain bandwidths, a timeinterval between the control channel for scheduling the reference signaland at least one of the channel or the signal corresponding to thereference signal is greater than or equal to the predeterminedthreshold.

The time interval length corresponding to first capability informationreported by the terminal is greater than the time interval lengthcorresponding to second capability information reported by the terminal,where the first capability information indicates the minimum timeinterval between the PDCCH and the PDSCH/AP-CSI-RS during BWP switch,and the second capability information indicates the minimum timeinterval required for the terminal to use TCI information indicated bythe PDCCH for receiving the PDSCH/AP-CSI-RS.

In another embodiment of the present disclosure, the predeterminedthreshold is obtained according to at least one of reported capabilityinformation; the subcarrier spacing corresponding to the control channelelement satisfying the fifth predetermined characteristic; a subcarrierspacing corresponding to the reported capability information; asubcarrier spacing corresponding to the control channel for schedulingthe reference signal; a subcarrier spacing corresponding to a controlchannel element satisfying the fifth predetermined characteristic; or asubcarrier spacing used for calculating the time interval.

In another embodiment of the present disclosure, the time interval isobtained according to at least one of a subcarrier spacing correspondingto the control channel for scheduling the reference signal; a subcarrierspacing corresponding to the control channel element satisfying thefifth predetermined characteristic; or a subcarrier spacing used forcalculating the time interval.

Another embodiment of the present disclosure provides an apparatus fortransmitting a reference signal. The apparatus includes a determinationmodule and a second transmission module.

The determination module is configured to determine reference signalinformation according to at least one of signaling information or afirst predetermined rule, where a reference signal information port isrequired to satisfy a second predetermined rule.

The second transmission module is configured to transmit, according tothe reference signal information, at least one of: the reference signal,a channel corresponding to the reference signal, or a signalcorresponding to the reference signal.

The implementation process of the apparatus for transmitting a referencesignal is the same as the implementation process of methods fortransmitting a reference signal in the above-mentioned embodiments, andwill not be repeated herein.

Another embodiment of the present disclosure provides a device fortransmitting a reference signal. The device includes a processor and acomputer-readable storage medium, where the computer-readable storagemedium is configured to store instructions which, when executed by theprocessor, implement any of the methods for transmitting a referencesignal described above.

Another embodiment of the present disclosure provides acomputer-readable storage medium, which is configured to store acomputer program which, when executed by a processor, implements stepsof any of the methods for transmitting a reference signal describedabove.

It is to be understood by those of ordinary skill in the art that all orsome of the steps of the preceding disclosed methods and at least one offunction modules or function units in the preceding disclosed system andapparatuses may be implemented as software, firmware, hardware, or anappropriate combination thereof. In the hardware implementation, thedivision of the functional modules/units mentioned in the abovedescription may not correspond to the division of physical components.For example, one physical component may have multiple functions, or onefunction or step may be performed jointly by several physicalcomponents. Some or all of the components may be implemented as softwareexecuted by a processor such as a digital signal processor or amicroprocessor, may be implemented as hardware, or may be implemented asan integrated circuit such as an application-specific integratedcircuit. Such software may be distributed over computer-readable media.The computer-readable media may include computer storage media (ornon-transitory media) and communication media (or transitory media). Asis known to those of ordinary skill in the art, the term computerstorage media include volatile and non-volatile as well as removable andnon-removable media implemented in any method or technology for storinginformation (such as computer-readable instructions, data structures,program modules or other data). Computer storage media include, but arenot limited to, random access memories (RAMs), read-only memories(ROMs), electrically erasable programmable read-only memories (EEPROMs),flash memories or other memory technologies; compact disc-read onlymemories (CD-ROMs), digital versatile disks (DVDs) or other optical diskmemories; magnetic cassettes, magnetic tapes, disk memories or othermagnetic storage devices, or any other medium used for storing desiredinformation and accessed by a computer. Moreover, it is known to thoseof ordinary skill in the art that communication media typically includecomputer-readable instructions, data structures, program modules orother data in modulated data signals such as carrier waves or othertransport mechanisms and may include any information delivery medium.

1. A method for determining a quasi-co-location reference signal,comprising: determining a first transmission configuration indicationlist corresponding to a first control channel element; determining, inthe first transmission configuration indication list, index informationof transmission configuration indication activated for the first controlchannel element according to second control signaling which is MAC-CEsignaling and comprises the index information; and determining aquasi-co-location reference signal activated for the first controlchannel element according to the index information and the firsttransmission configuration indication list; wherein one piece oftransmission configuration indication in the first transmissionconfiguration indication list corresponds to at least onequasi-co-location reference signal set.
 2. (canceled)
 3. The method ofclaim 1, wherein the determining a first transmission configurationindication list corresponding to a first control channel elementcomprises: determining the first transmission configuration indicationlist according to determination of whether the first control channelelement belongs to a predetermined control channel element set. 4.(canceled)
 5. The method of claim 3, wherein the determining the firsttransmission configuration indication list according to determination ofwhether the first control channel element belongs to a predeterminedcontrol channel element set comprises at least one of: in response tothe first control channel element not belonging to the predeterminedcontrol channel element set, determining the first transmissionconfiguration indication list to be a transmission configurationindication list configured for the first control channel element inthird control signaling, wherein the third control signaling carries afirst control channel element index; or in response to the first controlchannel element belonging to the predetermined control channel elementset, determining that the first transmission configuration indicationlist belongs to a transmission configuration indication list configuredfor a third channel element in fourth control signaling wherein thethird channel element comprises a data channel element; wherein thepredetermined control channel element set comprises at least one of acontrol channel resource set 0 or a search space set
 0. 6. The method ofclaim 5, wherein the third channel element satisfies at least one offollowing characteristics: a bandwidth part in which the third channelelement is located satisfies the first predetermined characteristic at apredetermined time; or the transmission configuration indication listconfigured for the third channel element satisfies a third predeterminedcharacteristic.
 7. The method of claim 6, wherein the firstpredetermined characteristic comprises at least one of: the bandwidthpart is in an active state; or the bandwidth part comprises a resourceoccupied by the first control channel element. 8-9. (canceled)
 10. Themethod of claim 6, wherein the predetermined time comprises one of: astart time at which transmission configuration indication carried in thesecond control signaling is capable of being used for receiving thefirst control channel element or a time unit in which the start time islocated; the predetermined time which is associated with second controlsignaling information; or a monitoring time of the first control channelelement or a time unit in which the monitoring time is located. 11-14.(canceled)
 15. The method of claim 5, wherein the first transmissionconfiguration indication list belongs to an X^(th) transmissionconfiguration indication list, which comprises: a quasi-co-locationreference signal corresponding to the transmission configurationindication and a synchronization signal satisfy a quasi-co-locationrelationship with respect to a type of quasi-co-location parameters,wherein the transmission configuration indication belongs to the firsttransmission configuration indication list in the X^(th) transmissionconfiguration indication list, and X is a value ranging from 2 to
 7. 16.(canceled)
 17. The method of claim 6, wherein the third predeterminedcharacteristic comprises at least one of: the number of pieces offirst-type transmission configuration indication is greater than afourth predetermined value, wherein the pieces of first-typetransmission configuration indication are comprised in the transmissionconfiguration indication list configured for the third channel element,and each quasi-co-location reference signal corresponding to thefirst-type transmission configuration indication and a synchronizationsignal satisfy a quasi-co-location relationship; or the number of piecesof second-type transmission configuration indication is greater than thefifth predetermined value, wherein the pieces of second-typetransmission configuration indication are comprised in the transmissionconfiguration indication list configured for the third channel element;and there is a quasi-co-location relationship between aquasi-co-location reference signal corresponding to the second-typetransmission configuration indication and associated with a type ofquasi-co-location parameters and a synchronization signal. 18-20.(canceled)
 21. The method of claim 1, wherein the quasi-co-locationreference signal activated for the first control channel elementcorresponds to at least two synchronization signal blocks, and themethod further comprises: determining a respective monitoring occasionof the first control channel element according to each of the at leasttwo synchronization signal blocks corresponding to the quasi-co-locationreference signal activated for the first control channel element;wherein the first control channel element comprises at least one of acontrol channel resource set 0 or a search space set
 0. 22. An apparatusfor determining a quasi-co-location reference signal, comprising aprocessor and a memory for storing execution instructions that whenexecuted by the processor cause the processor to perform steps infollowing modules: a transmission configuration indication listdetermination module, which is configured to determine a firsttransmission configuration indication list corresponding to a firstcontrol channel element; a transmission configuration indication indexinformation determination module, which is configured to determine, inthe first transmission configuration indication list, index informationof transmission configuration indication activated for the first controlchannel element according to second control signaling which is MAC-CEsignaling and comprises the index information; and a firstquasi-co-location reference signal determination module, which isconfigured to determine a quasi-co-location reference signal activatedfor the first control channel element according to the index informationand the first transmission configuration indication list; wherein onepiece of transmission configuration indication in the first transmissionconfiguration indication list corresponds to at least onequasi-co-location reference signal set.
 23. (canceled)
 24. Anon-transitory computer-readable storage medium, which is configured tostore a computer program which, when executed by a processor, implementsthe following steps: determining a first transmission configurationindication list corresponding to a first control channel element;determining, in the first transmission configuration indication list,index information of transmission configuration indication activated forthe first control channel element according to second control signalingwhich is MAC-CE signaling and comprises the index information; anddetermining a quasi-co-location reference signal activated for the firstcontrol channel element according to the index information and the firsttransmission configuration indication list wherein one piece oftransmission configuration indication in the first transmissionconfiguration indication list corresponds to at least onequasi-co-location reference signal set.
 25. The method of claim 1,further comprising: in response to satisfying a third predeterminedcondition, determining a quasi-co-location reference signal of areference signal according to a quasi-co-location reference signal of acontrol channel resource set (CORESET) satisfying a fifth predeterminedcharacteristic in a second time unit, wherein the second time unit is alatest time unit which comprises a CORESET satisfying a fourthpredetermined characteristic and is latest to at least one of a channelor a signal corresponding to the reference signal; wherein a timeinterval between a control channel and at least one of the channel orthe signal corresponding to the reference signal is less than apredetermined threshold, wherein the control channel schedules at leastone of the channel or the signal corresponding to the reference signal;and wherein the predetermined threshold is obtained according to atleast one of: capability information reported by a communication nodecorresponding to a subcarrier spacing used for calculating the timeinterval; a subcarrier spacing corresponding to at least one of thechannel or the signal corresponding to the reference signal; asubcarrier spacing corresponding to the control channel for schedulingat least one of the channel or the signal corresponding to the referencesignal; or a subcarrier spacing used for calculating the time interval.26-31. (canceled)
 32. The method of claim 25, wherein the time intervalis obtained according to at least one of: the subcarrier spacingcorresponding to the control channel for scheduling at least one of thechannel or the signal corresponding to the reference signal; thesubcarrier spacing corresponding to at least one of the channel or thesignal corresponding to the reference signal; the subcarrier spacingused for calculating the time interval; or a ratio between a subcarrierspacing of a bandwidth part of the control channel and a subcarrierspacing of a bandwidth part of at least one of the channel or thesignal. 33-62. (canceled)
 63. The apparatus of claim 22, wherein thetransmission configuration information list determination module 301 isconfigured to determine the first transmission configuration indicationlist according to determination of whether the first control channelelement belongs to a predetermined control channel element set.
 64. Theapparatus of claim 63, wherein the transmission configurationinformation list determination module 301 is configured to determine thefirst transmission configuration information list according to thedetermination of whether the first control channel element belongs to apredetermined control channel element set by using at least one of thefollowing manners: in response to the first control channel element notbelonging to the predetermined control channel element set, determiningthe first transmission configuration indication list to be atransmission configuration indication list configured for the firstcontrol channel element in third control signaling, wherein the thirdcontrol signaling carries a first control channel element index; or inresponse to the first control channel element belonging to thepredetermined control channel element set, determining that the firsttransmission configuration indication list belongs to a transmissionconfiguration indication list configured for a third channel element infourth control signaling, wherein the third channel element comprises adata channel element; wherein the predetermined control channel elementset comprises at least one of a control channel resource set 0 or asearch space set
 0. 65. The apparatus of claim 64, wherein the thirdchannel element satisfies at least one of following characteristics: abandwidth part in which the third channel element is located satisfiesthe first predetermined characteristic at a predetermined time; or thetransmission configuration indication list configured for the thirdchannel element satisfies a third predetermined characteristic.
 66. Theapparatus of claim 65, wherein the first predetermined characteristiccomprises at least one of: the bandwidth part is in an active state; orthe bandwidth part comprises a resource occupied by the first controlchannel element.
 67. The apparatus of claim 65, wherein thepredetermined time comprises one of: a start time at which transmissionconfiguration indication carried in the second control signaling iscapable of being used for receiving the first control channel element ora time unit in which the start time is located; the predetermined timewhich is associated with second control signaling information; or amonitoring time of the first control channel element or a time unit inwhich the monitoring time is located.
 68. The apparatus of claim 64,wherein the third predetermined characteristic comprises at least oneof: the number of pieces of first-type transmission configurationindication is greater than a fourth predetermined value, wherein thepieces of first-type transmission configuration indication are comprisedin the transmission configuration indication list configured for thethird channel element, and each quasi-co-location reference signalcorresponding to the first-type transmission configuration indicationand a synchronization signal satisfy a quasi-co-location relationship;or the number of pieces of second-type transmission configurationindication is greater than the fifth predetermined value, wherein thepieces of second-type transmission configuration indication arecomprised in the transmission configuration indication list configuredfor the third channel element; and there is a quasi-co-locationrelationship between a synchronization signal and a quasi-co-locationreference signal corresponding to the second-type transmissionconfiguration indication and associated with a type of quasi-co-locationparameters.
 69. The apparatus of claim 22, further comprising: a secondquasi-co-location reference signal determination module 601, which isconfigured to, in response to satisfying a third predeterminedcondition, determine a quasi-co-location reference signal of a referencesignal according to a quasi-co-location reference signal of a controlchannel resource set (CORESET) satisfying a fifth predeterminedcharacteristic in a second time unit, wherein the second time unit is alatest time unit which comprises a CORESET satisfying a fourthpredetermined characteristic and is latest to at least one of a channelor a signal corresponding to the reference signal; wherein a timeinterval between a control channel and at least one of the channel orthe signal corresponding to the reference signal is less than apredetermined threshold, wherein the control channel schedules at leastone of the channel or the signal corresponding to the reference signal;and wherein the predetermined threshold is obtained according to atleast one of: capability information reported by a communication nodecorresponding to a subcarrier spacing used for calculating the timeinterval; a subcarrier spacing corresponding to at least one of thechannel or the signal corresponding to the reference signal; asubcarrier spacing corresponding to the control channel for schedulingat least one of the channel or the signal corresponding to the referencesignal; or a subcarrier spacing used for calculating the time interval.